398287520966 has 8 divisors (see below), whose sum is σ = 599995364904. Its totient is φ = 198289066000.

The previous prime is 398287520899. The next prime is 398287520993. The reversal of 398287520966 is 669025782893.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427346660 + ... + 427347591.

It is an arithmetic number, because the mean of its divisors is an integer number (74999420613).

Almost surely, 2^398287520966 is an apocalyptic number.

398287520966 is a deficient number, since it is larger than the sum of its proper divisors (201707843938).

398287520966 is a wasteful number, since it uses less digits than its factorization.

398287520966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854694486.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 398287520966 in words is "three hundred ninety-eight billion, two hundred eighty-seven million, five hundred twenty thousand, nine hundred sixty-six".