38625993 has 72 divisors (see below), whose sum is σ = 71314880. Its totient is φ = 19673280.

The previous prime is 38625991. The next prime is 38626001. The reversal of 38625993 is 39952683.

It is not a de Polignac number, because 38625993 - 2¹ = 38625991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38625991) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 633183 + ... + 633243.

Almost surely, 2^38625993 is an apocalyptic number.

It is an amenable number.

38625993 is a deficient number, since it is larger than the sum of its proper divisors (32688887).

38625993 is a wasteful number, since it uses less digits than its factorization.

38625993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 113 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 38625993 is about 6214.9813354507. The cubic root of 38625993 is about 338.0336118436.

The spelling of 38625993 in words is "thirty-eight million, six hundred twenty-five thousand, nine hundred ninety-three".