997284784 has 20 divisors (see below), whose sum is σ = 2016250416. Its totient is φ = 476962112.

The previous prime is 997284781. The next prime is 997284793. The reversal of 997284784 is 487482799.

It is not an unprimeable number, because it can be changed into a prime (997284781) 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, 1354639 + ... + 1355374.

Almost surely, 2^997284784 is an apocalyptic number.

It is an amenable number.

997284784 is an abundant number, since it is smaller than the sum of its proper divisors (1018965632).

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

997284784 is a wasteful number, since it uses less digits than its factorization.

997284784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710044 (or 2710038 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 58.

The square root of 997284784 is about 31579.8160855949. The cubic root of 997284784 is about 999.0941076068.

The spelling of 997284784 in words is "nine hundred ninety-seven million, two hundred eighty-four thousand, seven hundred eighty-four".