91254474 has 48 divisors (see below), whose sum is σ = 208072800. Its totient is φ = 28861728.

The previous prime is 91254463. The next prime is 91254497. The reversal of 91254474 is 47445219.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29317 + ... + 32279.

It is an arithmetic number, because the mean of its divisors is an integer number (4334850).

Almost surely, 2^91254474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91254474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104036400).

91254474 is an abundant number, since it is smaller than the sum of its proper divisors (116818326).

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

91254474 is a wasteful number, since it uses less digits than its factorization.

91254474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059 (or 3056 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 91254474 is about 9552.7207642640. The cubic root of 91254474 is about 450.2130250663.

The spelling of 91254474 in words is "ninety-one million, two hundred fifty-four thousand, four hundred seventy-four".