91445464 has 16 divisors (see below), whose sum is σ = 187047720. Its totient is φ = 41566080.

The previous prime is 91445429. The next prime is 91445491. The reversal of 91445464 is 46454419.

It is a congruent number.

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, 519489 + ... + 519664.

Almost surely, 2^91445464 is an apocalyptic number.

It is an amenable number.

91445464 is an abundant number, since it is smaller than the sum of its proper divisors (95602256).

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

91445464 is a wasteful number, since it uses less digits than its factorization.

91445464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039170 (or 1039166 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 91445464 is about 9562.7121675809. The cubic root of 91445464 is about 450.5268955854.

The spelling of 91445464 in words is "ninety-one million, four hundred forty-five thousand, four hundred sixty-four".