91498 has 8 divisors (see below), whose sum is σ = 149760. Its totient is φ = 41580.

The previous prime is 91493. The next prime is 91499. The reversal of 91498 is 89419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (91493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2⁹¹⁴⁹⁸ is an apocalyptic number.

91498 is a deficient number, since it is larger than the sum of its proper divisors (58262).

91498 is a wasteful number, since it uses less digits than its factorization.

91498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172.

The product of its digits is 2592, while the sum is 31.

The square root of 91498 is about 302.4863633290. The cubic root of 91498 is about 45.0613155923.

The spelling of 91498 in words is "ninety-one thousand, four hundred ninety-eight".