39469013 has 4 divisors (see below), whose sum is σ = 40116108. Its totient is φ = 38821920.

The previous prime is 39468991. The next prime is 39469037. The reversal of 39469013 is 31096493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10125124 + 29343889 = 3182^2 + 5417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39469013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39469093) 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, 323456 + ... + 323577.

It is an arithmetic number, because the mean of its divisors is an integer number (10029027).

Almost surely, 2^39469013 is an apocalyptic number.

It is an amenable number.

39469013 is a deficient number, since it is larger than the sum of its proper divisors (647095).

39469013 is an equidigital number, since it uses as much as digits as its factorization.

39469013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647094.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 39469013 is about 6282.4368679677. The cubic root of 39469013 is about 340.4751516961.

The spelling of 39469013 in words is "thirty-nine million, four hundred sixty-nine thousand, thirteen".