91359954 has 64 divisors (see below), whose sum is σ = 234420480. Its totient is φ = 25833600.

The previous prime is 91359953. The next prime is 91359959. The reversal of 91359954 is 45995319.

It is a happy number.

91359954 is a `hidden beast` number, since 9 + 1 + 3 + 599 + 54 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91359953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36982 + ... + 39374.

It is an arithmetic number, because the mean of its divisors is an integer number (3662820).

Almost surely, 2^91359954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91359954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117210240).

91359954 is an abundant number, since it is smaller than the sum of its proper divisors (143060526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91359954 is a wasteful number, since it uses less digits than its factorization.

91359954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512 (or 2506 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The square root of 91359954 is about 9558.2401099784. The cubic root of 91359954 is about 450.3864236312.

The spelling of 91359954 in words is "ninety-one million, three hundred fifty-nine thousand, nine hundred fifty-four".