398936575 has 24 divisors (see below), whose sum is σ = 503940960. Its totient is φ = 313219200.

The previous prime is 398936563. The next prime is 398936581. The reversal of 398936575 is 575639893.

It is a happy number.

It is not a de Polignac number, because 398936575 - 2¹⁵ = 398903807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562321 + ... + 563029.

It is an arithmetic number, because the mean of its divisors is an integer number (20997540).

Almost surely, 2^398936575 is an apocalyptic number.

398936575 is a deficient number, since it is larger than the sum of its proper divisors (105004385).

398936575 is a wasteful number, since it uses less digits than its factorization.

398936575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1102 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 55.

The square root of 398936575 is about 19973.3966815862. The cubic root of 398936575 is about 736.1527717044.

The spelling of 398936575 in words is "three hundred ninety-eight million, nine hundred thirty-six thousand, five hundred seventy-five".