38690069 has 4 divisors (see below), whose sum is σ = 42207360. Its totient is φ = 35172780.

The previous prime is 38690039. The next prime is 38690081. The reversal of 38690069 is 96009683.

38690069 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38690069 - 2²⁰ = 37641493 is a prime.

It is a super-2 number, since 2×38690069² = 2993842878449522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38690039) 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, 1758629 + ... + 1758650.

It is an arithmetic number, because the mean of its divisors is an integer number (10551840).

Almost surely, 2^38690069 is an apocalyptic number.

It is an amenable number.

38690069 is a deficient number, since it is larger than the sum of its proper divisors (3517291).

38690069 is a wasteful number, since it uses less digits than its factorization.

38690069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517290.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 38690069 is about 6220.1341625402. The cubic root of 38690069 is about 338.2204279745.

The spelling of 38690069 in words is "thirty-eight million, six hundred ninety thousand, sixty-nine".