90702 has 12 divisors (see below), whose sum is σ = 196560. Its totient is φ = 30228.

The previous prime is 90697. The next prime is 90703. The reversal of 90702 is 20709.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5039 = 90702 / (9 + 0 + 7 + 0 + 2).

It is an Ulam number.

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 90702.

It is not an unprimeable number, because it can be changed into a prime (90703) by changing a digit.

90702 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2502 + ... + 2537.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2⁹⁰⁷⁰² is an apocalyptic number.

90702 is an abundant number, since it is smaller than the sum of its proper divisors (105858).

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

90702 is a wasteful number, since it uses less digits than its factorization.

90702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047 (or 5044 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 90702 is about 301.1677273547. The cubic root of 90702 is about 44.9302623520.

The spelling of 90702 in words is "ninety thousand, seven hundred two".