997373913 has 8 divisors (see below), whose sum is σ = 1362266976. Its totient is φ = 648698400.

The previous prime is 997373911. The next prime is 997373929. The reversal of 997373913 is 319373799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 997373913 - 2¹ = 997373911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997373911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4054243 + ... + 4054488.

It is an arithmetic number, because the mean of its divisors is an integer number (170283372).

Almost surely, 2^997373913 is an apocalyptic number.

It is an amenable number.

997373913 is a deficient number, since it is larger than the sum of its proper divisors (364893063).

997373913 is a wasteful number, since it uses less digits than its factorization.

997373913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108775.

The product of its digits is 964467, while the sum is 51.

The square root of 997373913 is about 31581.2272244129. The cubic root of 997373913 is about 999.1238702876.

The spelling of 997373913 in words is "nine hundred ninety-seven million, three hundred seventy-three thousand, nine hundred thirteen".