91677474 has 32 divisors (see below), whose sum is σ = 232832640. Its totient is φ = 26193456.

The previous prime is 91677473. The next prime is 91677491. The reversal of 91677474 is 47477619.

It is not an unprimeable number, because it can be changed into a prime (91677473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120889 + ... + 121644.

It is an arithmetic number, because the mean of its divisors is an integer number (7276020).

Almost surely, 2^91677474 is an apocalyptic number.

91677474 is an abundant number, since it is smaller than the sum of its proper divisors (141155166).

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

91677474 is a wasteful number, since it uses less digits than its factorization.

91677474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242551 (or 242545 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 91677474 is about 9574.8354555052. The cubic root of 91677474 is about 450.9075905016.

It can be divided in two parts, 9167 and 7474, that added together give a square (16641 = 129²).

The spelling of 91677474 in words is "ninety-one million, six hundred seventy-seven thousand, four hundred seventy-four".