398990076579 has 12 divisors (see below), whose sum is σ = 577232350032. Its totient is φ = 265571838000.

The previous prime is 398990076577. The next prime is 398990076581. The reversal of 398990076579 is 975670099893.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (398990076577) and next prime (398990076581).

It is not a de Polignac number, because 398990076579 - 2¹ = 398990076577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398990076577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35122872 + ... + 35134229.

It is an arithmetic number, because the mean of its divisors is an integer number (48102695836).

Almost surely, 2^398990076579 is an apocalyptic number.

398990076579 is a deficient number, since it is larger than the sum of its proper divisors (178242273453).

398990076579 is a wasteful number, since it uses less digits than its factorization.

398990076579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70257738 (or 70257735 counting only the distinct ones).

The product of its (nonzero) digits is 231472080, while the sum is 72.

The spelling of 398990076579 in words is "three hundred ninety-eight billion, nine hundred ninety million, seventy-six thousand, five hundred seventy-nine".