91956455 has 8 divisors (see below), whose sum is σ = 111154032. Its totient is φ = 73027648.

The previous prime is 91956439. The next prime is 91956457. The reversal of 91956455 is 55465919.

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 91956455 - 2⁴ = 91956439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91956457) 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, 66437 + ... + 67806.

It is an arithmetic number, because the mean of its divisors is an integer number (13894254).

Almost surely, 2^91956455 is an apocalyptic number.

91956455 is a deficient number, since it is larger than the sum of its proper divisors (19197577).

91956455 is a wasteful number, since it uses less digits than its factorization.

91956455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134385.

The product of its digits is 243000, while the sum is 44.

The square root of 91956455 is about 9589.3928379225. The cubic root of 91956455 is about 451.3645085050.

The spelling of 91956455 in words is "ninety-one million, nine hundred fifty-six thousand, four hundred fifty-five".