397948558 has 16 divisors (see below), whose sum is σ = 687180384. Its totient is φ = 169303680.

The previous prime is 397948541. The next prime is 397948561. The reversal of 397948558 is 855849793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101823 + ... + 105658.

It is an arithmetic number, because the mean of its divisors is an integer number (42948774).

Almost surely, 2^397948558 is an apocalyptic number.

397948558 is a deficient number, since it is larger than the sum of its proper divisors (289231826).

397948558 is a wasteful number, since it uses less digits than its factorization.

397948558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207627.

The product of its digits is 10886400, while the sum is 58.

The square root of 397948558 is about 19948.6480243650. The cubic root of 397948558 is about 735.5445440904.

The spelling of 397948558 in words is "three hundred ninety-seven million, nine hundred forty-eight thousand, five hundred fifty-eight".