91893480 has 64 divisors (see below), whose sum is σ = 315066240. Its totient is φ = 21004032.

The previous prime is 91893469. The next prime is 91893493. The reversal of 91893480 is 8439819.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53859 + ... + 55538.

It is an arithmetic number, because the mean of its divisors is an integer number (4922910).

Almost surely, 2^91893480 is an apocalyptic number.

It is an amenable number.

91893480 is an abundant number, since it is smaller than the sum of its proper divisors (223172760).

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

91893480 is a wasteful number, since it uses less digits than its factorization.

91893480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109418 (or 109414 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 91893480 is about 9586.1086995715. The cubic root of 91893480 is about 451.2614482354.

The spelling of 91893480 in words is "ninety-one million, eight hundred ninety-three thousand, four hundred eighty".