91473954 has 96 divisors (see below), whose sum is σ = 221356800. Its totient is φ = 24972480.

The previous prime is 91473929. The next prime is 91473959. The reversal of 91473954 is 45937419.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

Its product of digits (136080) is a multiple of the sum of its prime factors (240).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91473959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 658017 + ... + 658155.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^91473954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91473954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110678400).

91473954 is an abundant number, since it is smaller than the sum of its proper divisors (129882846).

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

91473954 is a wasteful number, since it uses less digits than its factorization.

91473954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 227 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 91473954 is about 9564.2016917252. The cubic root of 91473954 is about 450.5736782175.

The spelling of 91473954 in words is "ninety-one million, four hundred seventy-three thousand, nine hundred fifty-four".