91096415 has 4 divisors (see below), whose sum is σ = 109315704. Its totient is φ = 72877128.

The previous prime is 91096367. The next prime is 91096427. The reversal of 91096415 is 51469019.

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

It is a cyclic number.

It is not a de Polignac number, because 91096415 - 2⁶ = 91096351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9109637 + ... + 9109646.

It is an arithmetic number, because the mean of its divisors is an integer number (27328926).

Almost surely, 2^91096415 is an apocalyptic number.

91096415 is a deficient number, since it is larger than the sum of its proper divisors (18219289).

91096415 is a wasteful number, since it uses less digits than its factorization.

91096415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18219288.

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

The square root of 91096415 is about 9544.4441954469. Note that the first 3 decimals coincide. The cubic root of 91096415 is about 449.9529415811.

The spelling of 91096415 in words is "ninety-one million, ninety-six thousand, four hundred fifteen".