397948415 has 8 divisors (see below), whose sum is σ = 498300768. Its totient is φ = 304516960.

The previous prime is 397948403. The next prime is 397948487. The reversal of 397948415 is 514849793.

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

It is not a de Polignac number, because 397948415 - 2⁶ = 397948351 is a prime.

It is a Duffinian 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, 1730096 + ... + 1730325.

It is an arithmetic number, because the mean of its divisors is an integer number (62287596).

Almost surely, 2^397948415 is an apocalyptic number.

397948415 is a deficient number, since it is larger than the sum of its proper divisors (100352353).

397948415 is a wasteful number, since it uses less digits than its factorization.

397948415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460449.

The product of its digits is 1088640, while the sum is 50.

The square root of 397948415 is about 19948.6444401618. The cubic root of 397948415 is about 735.5444559861.

The spelling of 397948415 in words is "three hundred ninety-seven million, nine hundred forty-eight thousand, four hundred fifteen".