91641411 has 12 divisors (see below), whose sum is σ = 132524392. Its totient is φ = 61023456.

The previous prime is 91641409. The next prime is 91641413. The reversal of 91641411 is 11414619.

91641411 is a `hidden beast` number, since 9 + 1 + 641 + 4 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (91641409) and next prime (91641413).

It is not a de Polignac number, because 91641411 - 2¹ = 91641409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91641413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3000 + ... + 13866.

Almost surely, 2^91641411 is an apocalyptic number.

91641411 is a deficient number, since it is larger than the sum of its proper divisors (40882981).

91641411 is a wasteful number, since it uses less digits than its factorization.

91641411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11810 (or 11807 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 91641411 is about 9572.9520525280. The cubic root of 91641411 is about 450.8484585164.

The spelling of 91641411 in words is "ninety-one million, six hundred forty-one thousand, four hundred eleven".