397398546 has 24 divisors (see below), whose sum is σ = 862141644. Its totient is φ = 132295200.

The previous prime is 397398499. The next prime is 397398581. The reversal of 397398546 is 645893793.

397398546 is a `hidden beast` number, since 3 + 9 + 7 + 3 + 98 + 546 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 396447921 + 950625 = 19911^2 + 975^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 397398492 and 397398501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496 + ... + 28196.

Almost surely, 2^397398546 is an apocalyptic number.

397398546 is an abundant number, since it is smaller than the sum of its proper divisors (464743098).

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

397398546 is a wasteful number, since it uses less digits than its factorization.

397398546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28506 (or 28503 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 397398546 is about 19934.8575615679. The cubic root of 397398546 is about 735.2055179831.

The spelling of 397398546 in words is "three hundred ninety-seven million, three hundred ninety-eight thousand, five hundred forty-six".