398576678 has 8 divisors (see below), whose sum is σ = 597994968. Its totient is φ = 199245024.

The previous prime is 398576671. The next prime is 398576681. The reversal of 398576678 is 876675893.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398576671) 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, 8576 + ... + 29507.

It is an arithmetic number, because the mean of its divisors is an integer number (74749371).

Almost surely, 2^398576678 is an apocalyptic number.

398576678 is a deficient number, since it is larger than the sum of its proper divisors (199418290).

398576678 is a wasteful number, since it uses less digits than its factorization.

398576678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43318.

The product of its digits is 15240960, while the sum is 59.

The square root of 398576678 is about 19964.3852397213. The cubic root of 398576678 is about 735.9313339275.

The spelling of 398576678 in words is "three hundred ninety-eight million, five hundred seventy-six thousand, six hundred seventy-eight".