38515713 has 4 divisors (see below), whose sum is σ = 51354288. Its totient is φ = 25677140.

The previous prime is 38515709. The next prime is 38515747. The reversal of 38515713 is 31751583.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31751583 = 3 ⋅10583861.

It is a cyclic number.

It is not a de Polignac number, because 38515713 - 2² = 38515709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38515753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6419283 + ... + 6419288.

It is an arithmetic number, because the mean of its divisors is an integer number (12838572).

Almost surely, 2^38515713 is an apocalyptic number.

It is an amenable number.

38515713 is a deficient number, since it is larger than the sum of its proper divisors (12838575).

38515713 is a wasteful number, since it uses less digits than its factorization.

38515713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838574.

The product of its digits is 12600, while the sum is 33.

The square root of 38515713 is about 6206.1028834527. The cubic root of 38515713 is about 337.7116017355.

The spelling of 38515713 in words is "thirty-eight million, five hundred fifteen thousand, seven hundred thirteen".