398327995 has 16 divisors (see below), whose sum is σ = 516684672. Its totient is φ = 293051520.

The previous prime is 398327981. The next prime is 398328011. The reversal of 398327995 is 599723893.

It is a de Polignac number, because none of the positive numbers 2^k-398327995 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6309 + ... + 28921.

It is an arithmetic number, because the mean of its divisors is an integer number (32292792).

Almost surely, 2^398327995 is an apocalyptic number.

398327995 is a deficient number, since it is larger than the sum of its proper divisors (118356677).

398327995 is a wasteful number, since it uses less digits than its factorization.

398327995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22902.

The product of its digits is 3674160, while the sum is 55.

The square root of 398327995 is about 19958.1561022054. The cubic root of 398327995 is about 735.7782461214.

The spelling of 398327995 in words is "three hundred ninety-eight million, three hundred twenty-seven thousand, nine hundred ninety-five".