91012468 has 12 divisors (see below), whose sum is σ = 161062020. Its totient is φ = 44994752.

The previous prime is 91012459. The next prime is 91012487. The reversal of 91012468 is 86421019.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5116644 + 85895824 = 2262^2 + 9268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127471 + ... + 128182.

It is an arithmetic number, because the mean of its divisors is an integer number (13421835).

Almost surely, 2^91012468 is an apocalyptic number.

It is an amenable number.

91012468 is a deficient number, since it is larger than the sum of its proper divisors (70049552).

91012468 is a wasteful number, since it uses less digits than its factorization.

91012468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255746 (or 255744 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 91012468 is about 9540.0454925540. The cubic root of 91012468 is about 449.8146858363.

The spelling of 91012468 in words is "ninety-one million, twelve thousand, four hundred sixty-eight".