997918274 has 8 divisors (see below), whose sum is σ = 1506061200. Its totient is φ = 495897876.

The previous prime is 997918223. The next prime is 997918289. The reversal of 997918274 is 472819799.

997918274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530224 + ... + 1530875.

It is an arithmetic number, because the mean of its divisors is an integer number (188257650).

Almost surely, 2^997918274 is an apocalyptic number.

997918274 is a deficient number, since it is larger than the sum of its proper divisors (508142926).

997918274 is a wasteful number, since it uses less digits than its factorization.

997918274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061264.

The product of its digits is 2286144, while the sum is 56.

The square root of 997918274 is about 31589.8444757172. The cubic root of 997918274 is about 999.3056092664.

The spelling of 997918274 in words is "nine hundred ninety-seven million, nine hundred eighteen thousand, two hundred seventy-four".