997901914 has 16 divisors (see below), whose sum is σ = 1566320328. Its totient is φ = 476304192.

The previous prime is 997901893. The next prime is 997901929. The reversal of 997901914 is 419109799.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 905107225 + 92794689 = 30085^2 + 9633^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123297 + ... + 131140.

Almost surely, 2^997901914 is an apocalyptic number.

997901914 is a deficient number, since it is larger than the sum of its proper divisors (568418414).

997901914 is a wasteful number, since it uses less digits than its factorization.

997901914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254529.

The product of its (nonzero) digits is 183708, while the sum is 49.

The square root of 997901914 is about 31589.5855306777. The cubic root of 997901914 is about 999.3001483219.

The spelling of 997901914 in words is "nine hundred ninety-seven million, nine hundred one thousand, nine hundred fourteen".