397105398 has 12 divisors (see below), whose sum is σ = 860395068. Its totient is φ = 132368460.

The previous prime is 397105393. The next prime is 397105417. The reversal of 397105398 is 893501793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397105393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11030688 + ... + 11030723.

It is an arithmetic number, because the mean of its divisors is an integer number (71699589).

Almost surely, 2^397105398 is an apocalyptic number.

397105398 is an abundant number, since it is smaller than the sum of its proper divisors (463289670).

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

397105398 is a wasteful number, since it uses less digits than its factorization.

397105398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22061419 (or 22061416 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 397105398 is about 19927.5035566425. The cubic root of 397105398 is about 735.0246944362.

The spelling of 397105398 in words is "three hundred ninety-seven million, one hundred five thousand, three hundred ninety-eight".