91254928 has 20 divisors (see below), whose sum is σ = 177310080. Its totient is φ = 45497504.

The previous prime is 91254893. The next prime is 91254937. The reversal of 91254928 is 82945219.

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, 2200 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (8865504).

Almost surely, 2^91254928 is an apocalyptic number.

It is an amenable number.

91254928 is a deficient number, since it is larger than the sum of its proper divisors (86055152).

91254928 is a wasteful number, since it uses less digits than its factorization.

91254928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16254 (or 16248 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 91254928 is about 9552.7445270980. The cubic root of 91254928 is about 450.2137716831.

The spelling of 91254928 in words is "ninety-one million, two hundred fifty-four thousand, nine hundred twenty-eight".