91982898 has 48 divisors (see below), whose sum is σ = 237785760. Its totient is φ = 26280072.

The previous prime is 91982887. The next prime is 91982899. The reversal of 91982898 is 89828919.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (91982899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14736 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (4953870).

Almost surely, 2^91982898 is an apocalyptic number.

91982898 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

91982898 is an abundant number, since it is smaller than the sum of its proper divisors (145802862).

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

91982898 is a wasteful number, since it uses less digits than its factorization.

91982898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34788 (or 34775 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The square root of 91982898 is about 9590.7715018136. The cubic root of 91982898 is about 451.4077691542.

The spelling of 91982898 in words is "ninety-one million, nine hundred eighty-two thousand, eight hundred ninety-eight".