997362190 has 32 divisors (see below), whose sum is σ = 1962786816. Its totient is φ = 361875360.

The previous prime is 997362181. The next prime is 997362203. The reversal of 997362190 is 91263799.

997362190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×997362190² = 1989462676083192200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 997362190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41139 + ... + 60721.

It is an arithmetic number, because the mean of its divisors is an integer number (61337088).

Almost surely, 2^997362190 is an apocalyptic number.

997362190 is a deficient number, since it is larger than the sum of its proper divisors (965424626).

997362190 is a wasteful number, since it uses less digits than its factorization.

997362190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20064.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 997362190 is about 31581.0416231004. The cubic root of 997362190 is about 999.1199557493.

It can be divided in two parts, 99736 and 2190, that added together give a triangular number (101926 = T₄₅₁).

The spelling of 997362190 in words is "nine hundred ninety-seven million, three hundred sixty-two thousand, one hundred ninety".