91480774 has 64 divisors (see below), whose sum is σ = 183762432. Its totient is φ = 33062400.

The previous prime is 91480771. The next prime is 91480777. The reversal of 91480774 is 47708419.

It is an interprime number because it is at equal distance from previous prime (91480771) and next prime (91480777).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91480771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217084 + ... + 217504.

It is an arithmetic number, because the mean of its divisors is an integer number (2871288).

Almost surely, 2^91480774 is an apocalyptic number.

91480774 is an abundant number, since it is smaller than the sum of its proper divisors (92281658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91480774 is a wasteful number, since it uses less digits than its factorization.

91480774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 91480774 is about 9564.5582229395. The cubic root of 91480774 is about 450.5848757078.

The spelling of 91480774 in words is "ninety-one million, four hundred eighty thousand, seven hundred seventy-four".