91236798 has 24 divisors (see below), whose sum is σ = 202278648. Its totient is φ = 29704752.

The previous prime is 91236793. The next prime is 91236809. The reversal of 91236798 is 89763219.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91236793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58165 + ... + 59712.

It is an arithmetic number, because the mean of its divisors is an integer number (8428277).

Almost surely, 2^91236798 is an apocalyptic number.

91236798 is an abundant number, since it is smaller than the sum of its proper divisors (111041850).

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

91236798 is a wasteful number, since it uses less digits than its factorization.

91236798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117928 (or 117925 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 91236798 is about 9551.7955380127. The cubic root of 91236798 is about 450.1839544211.

The spelling of 91236798 in words is "ninety-one million, two hundred thirty-six thousand, seven hundred ninety-eight".