91490692 has 6 divisors (see below), whose sum is σ = 160108718. Its totient is φ = 45745344.

The previous prime is 91490689. The next prime is 91490723. The reversal of 91490692 is 29609419.

It can be written as a sum of positive squares in only one way, i.e., 48246916 + 43243776 = 6946^2 + 6576^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11436333 + ... + 11436340.

Almost surely, 2^91490692 is an apocalyptic number.

It is an amenable number.

91490692 is a deficient number, since it is larger than the sum of its proper divisors (68618026).

91490692 is a wasteful number, since it uses less digits than its factorization.

91490692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22872677 (or 22872675 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 91490692 is about 9565.0766855264. The cubic root of 91490692 is about 450.6011586895.

The spelling of 91490692 in words is "ninety-one million, four hundred ninety thousand, six hundred ninety-two".