397905088 has 84 divisors (see below), whose sum is σ = 948366912. Its totient is φ = 164989440.

The previous prime is 397905059. The next prime is 397905089. The reversal of 397905088 is 880509793.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (397905089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95170 + ... + 99262.

Almost surely, 2^397905088 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 397905088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474183456).

397905088 is an abundant number, since it is smaller than the sum of its proper divisors (550461824).

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

397905088 is a wasteful number, since it uses less digits than its factorization.

397905088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4133 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 397905088 is about 19947.5584470882. The cubic root of 397905088 is about 735.5177606574.

The spelling of 397905088 in words is "three hundred ninety-seven million, nine hundred five thousand, eighty-eight".