91098552 has 16 divisors (see below), whose sum is σ = 227746440. Its totient is φ = 30366176.

The previous prime is 91098517. The next prime is 91098569. The reversal of 91098552 is 25589019.

It is a self number, because there is not a number n which added to its sum of digits gives 91098552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897863 + ... + 1897910.

Almost surely, 2^91098552 is an apocalyptic number.

It is an amenable number.

91098552 is an abundant number, since it is smaller than the sum of its proper divisors (136647888).

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

91098552 is a wasteful number, since it uses less digits than its factorization.

91098552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795782 (or 3795778 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 91098552 is about 9544.5561447351. The cubic root of 91098552 is about 449.9564599849.

The spelling of 91098552 in words is "ninety-one million, ninety-eight thousand, five hundred fifty-two".