91074855 has 8 divisors (see below), whose sum is σ = 145719792. Its totient is φ = 48573248.

The previous prime is 91074853. The next prime is 91074881. The reversal of 91074855 is 55847019.

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 91074855 - 2¹ = 91074853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91074853) 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, 3035814 + ... + 3035843.

It is an arithmetic number, because the mean of its divisors is an integer number (18214974).

Almost surely, 2^91074855 is an apocalyptic number.

91074855 is a deficient number, since it is larger than the sum of its proper divisors (54644937).

91074855 is a wasteful number, since it uses less digits than its factorization.

91074855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071665.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 91074855 is about 9543.3146757298. The cubic root of 91074855 is about 449.9174416446.

The spelling of 91074855 in words is "ninety-one million, seventy-four thousand, eight hundred fifty-five".