397411977 has 8 divisors (see below), whose sum is σ = 542205664. Its totient is φ = 258779808.

The previous prime is 397411957. The next prime is 397411979. The reversal of 397411977 is 779114793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397411977 - 2⁶ = 397411913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397411979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540228 + ... + 1540485.

It is an arithmetic number, because the mean of its divisors is an integer number (67775708).

Almost surely, 2^397411977 is an apocalyptic number.

It is an amenable number.

397411977 is a deficient number, since it is larger than the sum of its proper divisors (144793687).

397411977 is a wasteful number, since it uses less digits than its factorization.

397411977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080759.

The product of its digits is 333396, while the sum is 48.

The square root of 397411977 is about 19935.1944309555. The cubic root of 397411977 is about 735.2138005450.

It can be divided in two parts, 3974 and 11977, that added together give a palindrome (15951).

The spelling of 397411977 in words is "three hundred ninety-seven million, four hundred eleven thousand, nine hundred seventy-seven".