670836 has 12 divisors (see below), whose sum is σ = 1565312. Its totient is φ = 223608.

The previous prime is 670823. The next prime is 670849. The reversal of 670836 is 638076.

670836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (670823) and next prime (670849).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

670836 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 in 3 ways as a sum of consecutive naturals, for example, 27940 + ... + 27963.

2⁶⁷⁰⁸³⁶ is an apocalyptic number.

It is an amenable number.

670836 is an abundant number, since it is smaller than the sum of its proper divisors (894476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670836 is a wasteful number, since it uses less digits than its factorization.

670836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55910 (or 55908 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 670836 is about 819.0457862659. The cubic root of 670836 is about 87.5397805511.

The spelling of 670836 in words is "six hundred seventy thousand, eight hundred thirty-six".