91474732 has 12 divisors (see below), whose sum is σ = 162107680. Its totient is φ = 45158256.

The previous prime is 91474727. The next prime is 91474777. The reversal of 91474732 is 23747419.

It is a junction number, because it is equal to n+sod(n) for n = 91474691 and 91474700.

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, 144423 + ... + 145054.

Almost surely, 2^91474732 is an apocalyptic number.

It is an amenable number.

91474732 is a deficient number, since it is larger than the sum of its proper divisors (70632948).

91474732 is a wasteful number, since it uses less digits than its factorization.

91474732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289560 (or 289558 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 91474732 is about 9564.2423641395. The cubic root of 91474732 is about 450.5749556133.

It can be divided in two parts, 9 and 1474732, that added together give a palindrome (1474741).

The spelling of 91474732 in words is "ninety-one million, four hundred seventy-four thousand, seven hundred thirty-two".