670089637 has 4 divisors (see below), whose sum is σ = 765816736. Its totient is φ = 574362540.

The previous prime is 670089617. The next prime is 670089643. The reversal of 670089637 is 736980076.

670089637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670089637 is a prime.

It is a super-2 number, since 2×670089637² = 898040243229583538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670089617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47863539 + ... + 47863552.

It is an arithmetic number, because the mean of its divisors is an integer number (191454184).

Almost surely, 2^670089637 is an apocalyptic number.

It is an amenable number.

670089637 is a deficient number, since it is larger than the sum of its proper divisors (95727099).

670089637 is an equidigital number, since it uses as much as digits as its factorization.

670089637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95727098.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 670089637 is about 25886.0896428951. The cubic root of 670089637 is about 875.0730331421.

The spelling of 670089637 in words is "six hundred seventy million, eighty-nine thousand, six hundred thirty-seven".