997735012 has 12 divisors (see below), whose sum is σ = 1748065536. Its totient is φ = 498287720.

The previous prime is 997735001. The next prime is 997735033. The reversal of 997735012 is 210537799.

It is a self number, because there is not a number n which added to its sum of digits gives 997735012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141064 + ... + 147967.

It is an arithmetic number, because the mean of its divisors is an integer number (145672128).

Almost surely, 2^997735012 is an apocalyptic number.

It is an amenable number.

997735012 is a deficient number, since it is larger than the sum of its proper divisors (750330524).

997735012 is a wasteful number, since it uses less digits than its factorization.

997735012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289898 (or 289896 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 997735012 is about 31586.9436951409. The cubic root of 997735012 is about 999.2444332627.

The spelling of 997735012 in words is "nine hundred ninety-seven million, seven hundred thirty-five thousand, twelve".