397871047932 has 48 divisors (see below), whose sum is σ = 967709635200. Its totient is φ = 127072953280.

The previous prime is 397871047771. The next prime is 397871047933. The reversal of 397871047932 is 239740178793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397871047933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4318182 + ... + 4409357.

It is an arithmetic number, because the mean of its divisors is an integer number (20160617400).

Almost surely, 2^397871047932 is an apocalyptic number.

It is an amenable number.

397871047932 is an abundant number, since it is smaller than the sum of its proper divisors (569838587268).

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

397871047932 is a wasteful number, since it uses less digits than its factorization.

397871047932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8727706 (or 8727704 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 397871047932 in words is "three hundred ninety-seven billion, eight hundred seventy-one million, forty-seven thousand, nine hundred thirty-two".