397559500 has 96 divisors (see below), whose sum is σ = 965712384. Its totient is φ = 141984000.

The previous prime is 397559483. The next prime is 397559507. The reversal of 397559500 is 5955793.

It is not an unprimeable number, because it can be changed into a prime (397559507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200514 + ... + 202486.

It is an arithmetic number, because the mean of its divisors is an integer number (10059504).

Almost surely, 2^397559500 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 397559500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482856192).

397559500 is an abundant number, since it is smaller than the sum of its proper divisors (568152884).

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

397559500 is a wasteful number, since it uses less digits than its factorization.

397559500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 212625, while the sum is 43.

The square root of 397559500 is about 19938.8941518831. The cubic root of 397559500 is about 735.3047620106.

The spelling of 397559500 in words is "three hundred ninety-seven million, five hundred fifty-nine thousand, five hundred".