38090693 has 4 divisors (see below), whose sum is σ = 40331340. Its totient is φ = 35850048.

The previous prime is 38090683. The next prime is 38090699. The reversal of 38090693 is 39609083.

It is a happy number.

38090693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39609083 = 1297 ⋅30539.

It can be written as a sum of positive squares in 2 ways, for example, as 25573249 + 12517444 = 5057^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 38090693 - 2⁶ = 38090629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38090699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120298 + ... + 1120331.

It is an arithmetic number, because the mean of its divisors is an integer number (10082835).

Almost surely, 2^38090693 is an apocalyptic number.

It is an amenable number.

38090693 is a deficient number, since it is larger than the sum of its proper divisors (2240647).

38090693 is a wasteful number, since it uses less digits than its factorization.

38090693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240646.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 38090693 is about 6171.7657927047. The cubic root of 38090693 is about 336.4647910190.

It can be divided in two parts, 38090 and 693, that added together give a palindrome (38783).

The spelling of 38090693 in words is "thirty-eight million, ninety thousand, six hundred ninety-three".