91486764 has 36 divisors (see below), whose sum is σ = 239235360. Its totient is φ = 29443680.

The previous prime is 91486727. The next prime is 91486777. The reversal of 91486764 is 46768419.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×91486764³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42772 + ... + 44859.

Almost surely, 2^91486764 is an apocalyptic number.

It is an amenable number.

91486764 is an abundant number, since it is smaller than the sum of its proper divisors (147748596).

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

91486764 is a wasteful number, since it uses less digits than its factorization.

91486764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87670 (or 87665 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 91486764 is about 9564.8713530293. The cubic root of 91486764 is about 450.5947099946.

It can be divided in two parts, 914 and 86764, that added together give a palindrome (87678).

The spelling of 91486764 in words is "ninety-one million, four hundred eighty-six thousand, seven hundred sixty-four".