91894892 has 6 divisors (see below), whose sum is σ = 160816068. Its totient is φ = 45947444.

The previous prime is 91894889. The next prime is 91894909. The reversal of 91894892 is 29849819.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 91894892.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11486858 + ... + 11486865.

It is an arithmetic number, because the mean of its divisors is an integer number (26802678).

Almost surely, 2^91894892 is an apocalyptic number.

It is an amenable number.

91894892 is a deficient number, since it is larger than the sum of its proper divisors (68921176).

91894892 is a wasteful number, since it uses less digits than its factorization.

91894892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22973727 (or 22973725 counting only the distinct ones).

The product of its digits is 373248, while the sum is 50.

The square root of 91894892 is about 9586.1823475250. The cubic root of 91894892 is about 451.2637595270.

The spelling of 91894892 in words is "ninety-one million, eight hundred ninety-four thousand, eight hundred ninety-two".