91582461 has 16 divisors (see below), whose sum is σ = 138566400. Its totient is φ = 59755104.

The previous prime is 91582433. The next prime is 91582471. The reversal of 91582461 is 16428519.

It is not a de Polignac number, because 91582461 - 2⁵ = 91582429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91582471) 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, 34816 + ... + 37353.

It is an arithmetic number, because the mean of its divisors is an integer number (8660400).

Almost surely, 2^91582461 is an apocalyptic number.

It is an amenable number.

91582461 is a deficient number, since it is larger than the sum of its proper divisors (46983939).

91582461 is a wasteful number, since it uses less digits than its factorization.

91582461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72225 (or 72219 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 91582461 is about 9569.8725696845. The cubic root of 91582461 is about 450.7517656305.

The spelling of 91582461 in words is "ninety-one million, five hundred eighty-two thousand, four hundred sixty-one".