83690 has 8 divisors (see below), whose sum is σ = 150660. Its totient is φ = 33472.

The previous prime is 83689. The next prime is 83701. The reversal of 83690 is 9638.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83521 + 169 = 289^2 + 13^2 .

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

It is a super-2 number, since 2×83690² = 14008032200, 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, 4175 + ... + 4194.

2⁸³⁶⁹⁰ is an apocalyptic number.

83690 is a deficient number, since it is larger than the sum of its proper divisors (66970).

83690 is a wasteful number, since it uses less digits than its factorization.

83690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8376.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 83690 is about 289.2922397853. The cubic root of 83690 is about 43.7412499508.

The spelling of 83690 in words is "eighty-three thousand, six hundred ninety".