91241963 has 16 divisors (see below), whose sum is σ = 95823840. Its totient is φ = 86800896.

The previous prime is 91241951. The next prime is 91241977. The reversal of 91241963 is 36914219.

It is a cyclic number.

It is not a de Polignac number, because 91241963 - 2⁴ = 91241947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91241903) 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, 581081 + ... + 581237.

It is an arithmetic number, because the mean of its divisors is an integer number (5988990).

Almost surely, 2^91241963 is an apocalyptic number.

91241963 is a deficient number, since it is larger than the sum of its proper divisors (4581877).

91241963 is a wasteful number, since it uses less digits than its factorization.

91241963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its digits is 11664, while the sum is 35.

The square root of 91241963 is about 9552.0659022015. The cubic root of 91241963 is about 450.1924493716.

It can be divided in two parts, 912 and 41963, that added together give a cube (42875 = 35³).

The spelling of 91241963 in words is "ninety-one million, two hundred forty-one thousand, nine hundred sixty-three".