670637 has 8 divisors (see below), whose sum is σ = 749952. Its totient is φ = 594400.

The previous prime is 670627. The next prime is 670639. The reversal of 670637 is 736076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 670637 - 2¹² = 666541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670637.

It is not an unprimeable number, because it can be changed into a prime (670639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 1194.

It is an arithmetic number, because the mean of its divisors is an integer number (93744).

2⁶⁷⁰⁶³⁷ is an apocalyptic number.

It is an amenable number.

670637 is a deficient number, since it is larger than the sum of its proper divisors (79315).

670637 is a wasteful number, since it uses less digits than its factorization.

670637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 670637 is about 818.9242944253. The cubic root of 670637 is about 87.5311236219.

The spelling of 670637 in words is "six hundred seventy thousand, six hundred thirty-seven".