398796575 has 6 divisors (see below), whose sum is σ = 494507784. Its totient is φ = 319037240.

The previous prime is 398796569. The next prime is 398796649. The reversal of 398796575 is 575697893.

It is not a de Polignac number, because 398796575 - 2²⁶ = 331687711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7975907 + ... + 7975956.

It is an arithmetic number, because the mean of its divisors is an integer number (82417964).

Almost surely, 2^398796575 is an apocalyptic number.

398796575 is a deficient number, since it is larger than the sum of its proper divisors (95711209).

398796575 is a wasteful number, since it uses less digits than its factorization.

398796575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15951873 (or 15951868 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 59.

The square root of 398796575 is about 19969.8917122753. The cubic root of 398796575 is about 736.0666482011.

The spelling of 398796575 in words is "three hundred ninety-eight million, seven hundred ninety-six thousand, five hundred seventy-five".