70636 has 6 divisors (see below), whose sum is σ = 123620. Its totient is φ = 35316.

The previous prime is 70627. The next prime is 70639. The reversal of 70636 is 63607.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70639) by changing a digit.

70636 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 as a sum of consecutive naturals, namely, 8826 + ... + 8833.

2⁷⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

70636 is a deficient number, since it is larger than the sum of its proper divisors (52984).

70636 is a wasteful number, since it uses less digits than its factorization.

70636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17663 (or 17661 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 70636 is about 265.7743403717. The cubic root of 70636 is about 41.3372929494.

The spelling of 70636 in words is "seventy thousand, six hundred thirty-six".