91274850 has 120 divisors (see below), whose sum is σ = 262149888. Its totient is φ = 23522400.

The previous prime is 91274839. The next prime is 91274863. The reversal of 91274850 is 5847219.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 125187 + ... + 125913.

Almost surely, 2^91274850 is an apocalyptic number.

91274850 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 91274850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131074944).

91274850 is an abundant number, since it is smaller than the sum of its proper divisors (170875038).

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

91274850 is a wasteful number, since it uses less digits than its factorization.

91274850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 91274850 is about 9553.7872071760. The cubic root of 91274850 is about 450.2465315802.

The spelling of 91274850 in words is "ninety-one million, two hundred seventy-four thousand, eight hundred fifty".