39479439 has 8 divisors (see below), whose sum is σ = 52781872. Its totient is φ = 26248320.

The previous prime is 39479417. The next prime is 39479441. The reversal of 39479439 is 93497493.

39479439 = 121² + 122² + ... + 493².

39479439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39479439 - 2⁷ = 39479311 is a prime.

It is a super-2 number, since 2×39479439² = 3117252207509442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39479459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16522 + ... + 18759.

It is an arithmetic number, because the mean of its divisors is an integer number (6597734).

Almost surely, 2^39479439 is an apocalyptic number.

39479439 is a deficient number, since it is larger than the sum of its proper divisors (13302433).

39479439 is a wasteful number, since it uses less digits than its factorization.

39479439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35657.

The product of its digits is 734832, while the sum is 48.

The square root of 39479439 is about 6283.2665867366. The cubic root of 39479439 is about 340.5051286421.

The spelling of 39479439 in words is "thirty-nine million, four hundred seventy-nine thousand, four hundred thirty-nine".