91457692 has 12 divisors (see below), whose sum is σ = 160216056. Its totient is φ = 45681680.

The previous prime is 91457687. The next prime is 91457693. The reversal of 91457692 is 29675419.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91457693) by changing a digit.

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, 7234 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (13351338).

Almost surely, 2^91457692 is an apocalyptic number.

It is an amenable number.

91457692 is a deficient number, since it is larger than the sum of its proper divisors (68758364).

91457692 is a wasteful number, since it uses less digits than its factorization.

91457692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588 (or 23586 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 91457692 is about 9563.3515045720. The cubic root of 91457692 is about 450.5469760323.

The spelling of 91457692 in words is "ninety-one million, four hundred fifty-seven thousand, six hundred ninety-two".