91395854 has 16 divisors (see below), whose sum is σ = 151608240. Its totient is φ = 40973760.

The previous prime is 91395853. The next prime is 91395971. The reversal of 91395854 is 45859319.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91395853) 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, 26849 + ... + 30060.

It is an arithmetic number, because the mean of its divisors is an integer number (9475515).

Almost surely, 2^91395854 is an apocalyptic number.

91395854 is a deficient number, since it is larger than the sum of its proper divisors (60212386).

91395854 is a wasteful number, since it uses less digits than its factorization.

91395854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56995.

The product of its digits is 194400, while the sum is 44.

The square root of 91395854 is about 9560.1178863024. The cubic root of 91395854 is about 450.4454091951.

The spelling of 91395854 in words is "ninety-one million, three hundred ninety-five thousand, eight hundred fifty-four".