89690 has 8 divisors (see below), whose sum is σ = 161460. Its totient is φ = 35872.

The previous prime is 89689. The next prime is 89753. The reversal of 89690 is 9698.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89401 + 289 = 299^2 + 17^2 .

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

It is a super-2 number, since 2×89690² = 16088592200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4475 + ... + 4494.

2⁸⁹⁶⁹⁰ is an apocalyptic number.

89690 is a deficient number, since it is larger than the sum of its proper divisors (71770).

89690 is a wasteful number, since it uses less digits than its factorization.

89690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 89690 is about 299.4828876580. The cubic root of 89690 is about 44.7625351108.

The spelling of 89690 in words is "eighty-nine thousand, six hundred ninety".