997322192 has 20 divisors (see below), whose sum is σ = 1934107236. Its totient is φ = 498197760.

The previous prime is 997322191. The next prime is 997322197. The reversal of 997322192 is 291223799.

It can be written as a sum of positive squares in 2 ways, for example, as 327754816 + 669567376 = 18104^2 + 25876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997322191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10859 + ... + 45962.

Almost surely, 2^997322192 is an apocalyptic number.

It is an amenable number.

997322192 is a deficient number, since it is larger than the sum of its proper divisors (936785044).

997322192 is a wasteful number, since it uses less digits than its factorization.

997322192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57926 (or 57920 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 997322192 is about 31580.4083570811. The cubic root of 997322192 is about 999.1065994064.

The spelling of 997322192 in words is "nine hundred ninety-seven million, three hundred twenty-two thousand, one hundred ninety-two".