397845118 has 16 divisors (see below), whose sum is σ = 689315184. Its totient is φ = 170200960.

The previous prime is 397845043. The next prime is 397845121. The reversal of 397845118 is 811548793.

It is a happy number.

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, 531505 + ... + 532252.

It is an arithmetic number, because the mean of its divisors is an integer number (43082199).

Almost surely, 2^397845118 is an apocalyptic number.

397845118 is a deficient number, since it is larger than the sum of its proper divisors (291470066).

397845118 is a wasteful number, since it uses less digits than its factorization.

397845118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063787.

The product of its digits is 241920, while the sum is 46.

The square root of 397845118 is about 19946.0551989610. The cubic root of 397845118 is about 735.4808077779.

The spelling of 397845118 in words is "three hundred ninety-seven million, eight hundred forty-five thousand, one hundred eighteen".