997033884 has 96 divisors (see below), whose sum is σ = 3071126016. Its totient is φ = 243732480.

The previous prime is 997033883. The next prime is 997033903. The reversal of 997033884 is 488330799.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997033883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16029 + ... + 47444.

It is an arithmetic number, because the mean of its divisors is an integer number (31990896).

Almost surely, 2^997033884 is an apocalyptic number.

It is an amenable number.

997033884 is an abundant number, since it is smaller than the sum of its proper divisors (2074092132).

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

997033884 is a wasteful number, since it uses less digits than its factorization.

997033884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63515 (or 63513 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 997033884 is about 31575.8433616586. The cubic root of 997033884 is about 999.0103155144.

The spelling of 997033884 in words is "nine hundred ninety-seven million, thirty-three thousand, eight hundred eighty-four".