997016923 has 8 divisors (see below), whose sum is σ = 1141717248. Its totient is φ = 852883944.

The previous prime is 997016873. The next prime is 997016927. The reversal of 997016923 is 329610799.

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

It is a cyclic number.

It is not a de Polignac number, because 997016923 - 2²¹ = 994919771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997016927) 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, 138061 + ... + 145102.

It is an arithmetic number, because the mean of its divisors is an integer number (142714656).

Almost surely, 2^997016923 is an apocalyptic number.

997016923 is a deficient number, since it is larger than the sum of its proper divisors (144700325).

997016923 is a wasteful number, since it uses less digits than its factorization.

997016923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283673.

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

The square root of 997016923 is about 31575.5747849505. The cubic root of 997016923 is about 999.0046506083.

The spelling of 997016923 in words is "nine hundred ninety-seven million, sixteen thousand, nine hundred twenty-three".