997754972 has 24 divisors (see below), whose sum is σ = 1790937456. Its totient is φ = 486114048.

The previous prime is 997754969. The next prime is 997754983. The reversal of 997754972 is 279457799.

997754972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67778 + ... + 81174.

It is an arithmetic number, because the mean of its divisors is an integer number (74622394).

Almost surely, 2^997754972 is an apocalyptic number.

It is an amenable number.

997754972 is a deficient number, since it is larger than the sum of its proper divisors (793182484).

997754972 is a wasteful number, since it uses less digits than its factorization.

997754972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13877 (or 13875 counting only the distinct ones).

The product of its digits is 10001880, while the sum is 59.

The square root of 997754972 is about 31587.2596468893. The cubic root of 997754972 is about 999.2510966171.

The spelling of 997754972 in words is "nine hundred ninety-seven million, seven hundred fifty-four thousand, nine hundred seventy-two".