991699704 has 48 divisors (see below), whose sum is σ = 2695890600. Its totient is φ = 329331264.

The previous prime is 991699697. The next prime is 991699711. The reversal of 991699704 is 407996199.

991699704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (991699697) and next prime (991699711).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6234 + ... + 44969.

Almost surely, 2^991699704 is an apocalyptic number.

It is an amenable number.

991699704 is an abundant number, since it is smaller than the sum of its proper divisors (1704190896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

991699704 is a wasteful number, since it uses less digits than its factorization.

991699704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51484 (or 51477 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 991699704 is about 31491.2639314461. The cubic root of 991699704 is about 997.2255441805.

The spelling of 991699704 in words is "nine hundred ninety-one million, six hundred ninety-nine thousand, seven hundred four".