997132412 has 12 divisors (see below), whose sum is σ = 1751283240. Its totient is φ = 496765776.

The previous prime is 997132387. The next prime is 997132417. The reversal of 997132412 is 214231799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997132417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448862 + ... + 451077.

It is an arithmetic number, because the mean of its divisors is an integer number (145940270).

Almost surely, 2^997132412 is an apocalyptic number.

It is an amenable number.

997132412 is a deficient number, since it is larger than the sum of its proper divisors (754150828).

997132412 is a wasteful number, since it uses less digits than its factorization.

997132412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900220 (or 900218 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 997132412 is about 31577.4035031381. The cubic root of 997132412 is about 999.0432222015.

The spelling of 997132412 in words is "nine hundred ninety-seven million, one hundred thirty-two thousand, four hundred twelve".