39534913 has 4 divisors (see below), whose sum is σ = 43129008. Its totient is φ = 35940820.

The previous prime is 39534871. The next prime is 39534923. The reversal of 39534913 is 31943593.

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 a de Polignac number, because none of the positive numbers 2^k-39534913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39534923) 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, 1797031 + ... + 1797052.

It is an arithmetic number, because the mean of its divisors is an integer number (10782252).

Almost surely, 2^39534913 is an apocalyptic number.

It is an amenable number.

39534913 is a deficient number, since it is larger than the sum of its proper divisors (3594095).

39534913 is a wasteful number, since it uses less digits than its factorization.

39534913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594094.

The product of its digits is 43740, while the sum is 37.

The square root of 39534913 is about 6287.6794606596. The cubic root of 39534913 is about 340.6645393935.

The spelling of 39534913 in words is "thirty-nine million, five hundred thirty-four thousand, nine hundred thirteen".