91196405 has 8 divisors (see below), whose sum is σ = 109517184. Its totient is φ = 72902800.

The previous prime is 91196401. The next prime is 91196419. The reversal of 91196405 is 50469119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91196405 - 2² = 91196401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91196401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 13590.

It is an arithmetic number, because the mean of its divisors is an integer number (13689648).

Almost surely, 2^91196405 is an apocalyptic number.

It is an amenable number.

91196405 is a deficient number, since it is larger than the sum of its proper divisors (18320779).

91196405 is a wasteful number, since it uses less digits than its factorization.

91196405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 91196405 is about 9549.6808847207. The cubic root of 91196405 is about 450.1175084070.

The spelling of 91196405 in words is "ninety-one million, one hundred ninety-six thousand, four hundred five".