397254655 has 8 divisors (see below), whose sum is σ = 544806432. Its totient is φ = 272403168.

The previous prime is 397254647. The next prime is 397254703. The reversal of 397254655 is 556452793.

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

It is a cyclic number.

It is not a de Polignac number, because 397254655 - 2³ = 397254647 is a prime.

It is a super-2 number, since 2×397254655² = 315622521838338050, which contains 22 as substring.

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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5675032 + ... + 5675101.

It is an arithmetic number, because the mean of its divisors is an integer number (68100804).

Almost surely, 2^397254655 is an apocalyptic number.

397254655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

397254655 is a deficient number, since it is larger than the sum of its proper divisors (147551777).

397254655 is a wasteful number, since it uses less digits than its factorization.

397254655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350145.

The product of its digits is 1134000, while the sum is 46.

The square root of 397254655 is about 19931.2482047663. The cubic root of 397254655 is about 735.1167722903.

The spelling of 397254655 in words is "three hundred ninety-seven million, two hundred fifty-four thousand, six hundred fifty-five".