399076332479 has 8 divisors (see below), whose sum is σ = 436647860688. Its totient is φ = 361720114560.

The previous prime is 399076332467. The next prime is 399076332509. The reversal of 399076332479 is 974233670993.

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

It is a cyclic number.

It is not a de Polignac number, because 399076332479 - 2¹² = 399076328383 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 (399076332419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53823692 + ... + 53831105.

It is an arithmetic number, because the mean of its divisors is an integer number (54580982586).

Almost surely, 2^399076332479 is an apocalyptic number.

399076332479 is a deficient number, since it is larger than the sum of its proper divisors (37571528209).

399076332479 is a wasteful number, since it uses less digits than its factorization.

399076332479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107655145.

The product of its (nonzero) digits is 46294416, while the sum is 62.

The spelling of 399076332479 in words is "three hundred ninety-nine billion, seventy-six million, three hundred thirty-two thousand, four hundred seventy-nine".