91492398 has 12 divisors (see below), whose sum is σ = 198233568. Its totient is φ = 30497460.

The previous prime is 91492393. The next prime is 91492403. The reversal of 91492398 is 89329419.

It is an interprime number because it is at equal distance from previous prime (91492393) and next prime (91492403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91492393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2541438 + ... + 2541473.

It is an arithmetic number, because the mean of its divisors is an integer number (16519464).

Almost surely, 2^91492398 is an apocalyptic number.

91492398 is an abundant number, since it is smaller than the sum of its proper divisors (106741170).

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

91492398 is a wasteful number, since it uses less digits than its factorization.

91492398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082919 (or 5082916 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 91492398 is about 9565.1658636952. The cubic root of 91492398 is about 450.6039594145.

The spelling of 91492398 in words is "ninety-one million, four hundred ninety-two thousand, three hundred ninety-eight".