997743936 has 56 divisors (see below), whose sum is σ = 3016991680. Its totient is φ = 285069312.

The previous prime is 997743917. The next prime is 997743983. The reversal of 997743936 is 639347799.

997743936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

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, 369841 + ... + 372528.

Almost surely, 2^997743936 is an apocalyptic number.

997743936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

997743936 is an abundant number, since it is smaller than the sum of its proper divisors (2019247744).

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

997743936 is a wasteful number, since it uses less digits than its factorization.

997743936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742391 (or 742381 counting only the distinct ones).

The product of its digits is 7715736, while the sum is 57.

The square root of 997743936 is about 31587.0849557220. The cubic root of 997743936 is about 999.2474124207.

The spelling of 997743936 in words is "nine hundred ninety-seven million, seven hundred forty-three thousand, nine hundred thirty-six".