997959424 has 72 divisors (see below), whose sum is σ = 2483607168. Its totient is φ = 388807680.

The previous prime is 997959407. The next prime is 997959491. The reversal of 997959424 is 424959799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5602 + ... + 45025.

It is an arithmetic number, because the mean of its divisors is an integer number (34494544).

Almost surely, 2^997959424 is an apocalyptic number.

It is an amenable number.

997959424 is an abundant number, since it is smaller than the sum of its proper divisors (1485647744).

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

997959424 is a wasteful number, since it uses less digits than its factorization.

997959424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50661 (or 50647 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 58.

The square root of 997959424 is about 31590.4957859164. The cubic root of 997959424 is about 999.3193448136.

The spelling of 997959424 in words is "nine hundred ninety-seven million, nine hundred fifty-nine thousand, four hundred twenty-four".