670610635 has 4 divisors (see below), whose sum is σ = 804732768. Its totient is φ = 536488504.

The previous prime is 670610621. The next prime is 670610669. The reversal of 670610635 is 536016076.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 670610635 - 2²³ = 662222027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670610635.

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, 67061059 + ... + 67061068.

It is an arithmetic number, because the mean of its divisors is an integer number (201183192).

Almost surely, 2^670610635 is an apocalyptic number.

670610635 is a deficient number, since it is larger than the sum of its proper divisors (134122133).

670610635 is a wasteful number, since it uses less digits than its factorization.

670610635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134122132.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 670610635 is about 25896.1509688216. The cubic root of 670610635 is about 875.2997655911.

The spelling of 670610635 in words is "six hundred seventy million, six hundred ten thousand, six hundred thirty-five".