38807513 has 4 divisors (see below), whose sum is σ = 38932608. Its totient is φ = 38682420.

The previous prime is 38807479. The next prime is 38807521. The reversal of 38807513 is 31570883.

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: 31570883 = 101 ⋅312583.

It is a cyclic number.

It is not a de Polignac number, because 38807513 - 2¹⁰ = 38806489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38807213) 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, 62081 + ... + 62702.

It is an arithmetic number, because the mean of its divisors is an integer number (9733152).

Almost surely, 2^38807513 is an apocalyptic number.

It is an amenable number.

38807513 is a deficient number, since it is larger than the sum of its proper divisors (125095).

38807513 is a wasteful number, since it uses less digits than its factorization.

38807513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125094.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 38807513 is about 6229.5676414981. The cubic root of 38807513 is about 338.5623058475.

The spelling of 38807513 in words is "thirty-eight million, eight hundred seven thousand, five hundred thirteen".