91063892 has 12 divisors (see below), whose sum is σ = 159762036. Its totient is φ = 45417600.

The previous prime is 91063879. The next prime is 91063901. The reversal of 91063892 is 29836019.

It can be written as a sum of positive squares in 2 ways, for example, as 64705936 + 26357956 = 8044^2 + 5134^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26783 + ... + 29990.

It is an arithmetic number, because the mean of its divisors is an integer number (13313503).

Almost surely, 2^91063892 is an apocalyptic number.

It is an amenable number.

91063892 is a deficient number, since it is larger than the sum of its proper divisors (68698144).

91063892 is a wasteful number, since it uses less digits than its factorization.

91063892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57178 (or 57176 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 91063892 is about 9542.7402772998. The cubic root of 91063892 is about 449.8993882063.

The spelling of 91063892 in words is "ninety-one million, sixty-three thousand, eight hundred ninety-two".