91802 has 8 divisors (see below), whose sum is σ = 138996. Its totient is φ = 45472.

The previous prime is 91801. The next prime is 91807. The reversal of 91802 is 20819.

It can be written as a sum of positive squares in 2 ways, for example, as 89401 + 2401 = 299^2 + 49^2 .

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

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91802.

It is not an unprimeable number, because it can be changed into a prime (91801) 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, 278 + ... + 510.

2⁹¹⁸⁰² is an apocalyptic number.

91802 is a deficient number, since it is larger than the sum of its proper divisors (47194).

91802 is a wasteful number, since it uses less digits than its factorization.

91802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 91802 is about 302.9884486247. The cubic root of 91802 is about 45.1111654861. Note that the first 4 decimals are identical.

The spelling of 91802 in words is "ninety-one thousand, eight hundred two".