91050895 has 48 divisors (see below), whose sum is σ = 129352608. Its totient is φ = 61102080.

The previous prime is 91050889. The next prime is 91050961. The reversal of 91050895 is 59805019.

It is not a de Polignac number, because 91050895 - 2⁹ = 91050383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 47 ways as a sum of consecutive naturals, for example, 694980 + ... + 695110.

It is an arithmetic number, because the mean of its divisors is an integer number (2694846).

Almost surely, 2^91050895 is an apocalyptic number.

91050895 is a deficient number, since it is larger than the sum of its proper divisors (38301713).

91050895 is a wasteful number, since it uses less digits than its factorization.

91050895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 91050895 is about 9542.0592641211. The cubic root of 91050895 is about 449.8779833793.

The spelling of 91050895 in words is "ninety-one million, fifty thousand, eight hundred ninety-five".