91409495 has 8 divisors (see below), whose sum is σ = 110175984. Its totient is φ = 72804544.

The previous prime is 91409489. The next prime is 91409509. The reversal of 91409495 is 59490419.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 91409495 - 2¹² = 91405399 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 7 ways as a sum of consecutive naturals, for example, 39134 + ... + 41403.

It is an arithmetic number, because the mean of its divisors is an integer number (13771998).

Almost surely, 2^91409495 is an apocalyptic number.

91409495 is a deficient number, since it is larger than the sum of its proper divisors (18766489).

91409495 is a wasteful number, since it uses less digits than its factorization.

91409495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80769.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 91409495 is about 9560.8312923093. The cubic root of 91409495 is about 450.4678180167.

The spelling of 91409495 in words is "ninety-one million, four hundred nine thousand, four hundred ninety-five".