91296761 has 4 divisors (see below), whose sum is σ = 91394724. Its totient is φ = 91198800.

The previous prime is 91296757. The next prime is 91296769. The reversal of 91296761 is 16769219.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34445161 + 56851600 = 5869^2 + 7540^2 .

It is a cyclic number.

It is not a de Polignac number, because 91296761 - 2² = 91296757 is a prime.

It is a super-2 number, since 2×91296761² = 16670197138182242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91296769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47570 + ... + 49451.

It is an arithmetic number, because the mean of its divisors is an integer number (22848681).

Almost surely, 2^91296761 is an apocalyptic number.

It is an amenable number.

91296761 is a deficient number, since it is larger than the sum of its proper divisors (97963).

91296761 is an equidigital number, since it uses as much as digits as its factorization.

91296761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97962.

The product of its digits is 40824, while the sum is 41.

The square root of 91296761 is about 9554.9338563906. The cubic root of 91296761 is about 450.2825567008.

The spelling of 91296761 in words is "ninety-one million, two hundred ninety-six thousand, seven hundred sixty-one".