38914993 has 8 divisors (see below), whose sum is σ = 42085736. Its totient is φ = 35769600.

The previous prime is 38914979. The next prime is 38914999. The reversal of 38914993 is 39941983.

38914993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13593969 + 25321024 = 3687^2 + 5032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38914993 - 2²¹ = 36817841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38914999) 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 7 ways as a sum of consecutive naturals, for example, 3078 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (5260717).

Almost surely, 2^38914993 is an apocalyptic number.

It is an amenable number.

38914993 is a deficient number, since it is larger than the sum of its proper divisors (3170743).

38914993 is a wasteful number, since it uses less digits than its factorization.

38914993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675.

The product of its digits is 209952, while the sum is 46.

The square root of 38914993 is about 6238.1882786591. The cubic root of 38914993 is about 338.8745747166.

The spelling of 38914993 in words is "thirty-eight million, nine hundred fourteen thousand, nine hundred ninety-three".