997384632 has 32 divisors (see below), whose sum is σ = 2624697600. Its totient is φ = 314963424.

The previous prime is 997384601. The next prime is 997384639. The reversal of 997384632 is 236483799.

It is a super-2 number, since 2×997384632² = 1989552208299550848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997384639) 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 7 ways as a sum of consecutive naturals, for example, 1093168 + ... + 1094079.

It is an arithmetic number, because the mean of its divisors is an integer number (82021800).

Almost surely, 2^997384632 is an apocalyptic number.

It is an amenable number.

997384632 is an abundant number, since it is smaller than the sum of its proper divisors (1627312968).

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

997384632 is a wasteful number, since it uses less digits than its factorization.

997384632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187275 (or 2187271 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 997384632 is about 31581.3969292050. The cubic root of 997384632 is about 999.1274495438.

The spelling of 997384632 in words is "nine hundred ninety-seven million, three hundred eighty-four thousand, six hundred thirty-two".