397173488 has 40 divisors (see below), whose sum is σ = 799758336. Its totient is φ = 190872000.

The previous prime is 397173487. The next prime is 397173493. The reversal of 397173488 is 884371793.

It is a super-2 number, since 2×397173488² = 315493559140172288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397173487) 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, 72245 + ... + 77547.

Almost surely, 2^397173488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397173488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399879168).

397173488 is an abundant number, since it is smaller than the sum of its proper divisors (402584848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397173488 is a wasteful number, since it uses less digits than its factorization.

397173488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493 (or 5487 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 397173488 is about 19929.2119262152. The cubic root of 397173488 is about 735.0667025709.

The spelling of 397173488 in words is "three hundred ninety-seven million, one hundred seventy-three thousand, four hundred eighty-eight".