70646 has 4 divisors (see below), whose sum is σ = 105972. Its totient is φ = 35322.

The previous prime is 70639. The next prime is 70657. The reversal of 70646 is 64607.

70646 is nontrivially palindromic in base 11.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17660 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (26493).

2⁷⁰⁶⁴⁶ is an apocalyptic number.

70646 is a deficient number, since it is larger than the sum of its proper divisors (35326).

70646 is a wasteful number, since it uses less digits than its factorization.

70646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35325.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 70646 is about 265.7931526582. The cubic root of 70646 is about 41.3392435762.

The spelling of 70646 in words is "seventy thousand, six hundred forty-six".