670437 has 24 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 427680.

The previous prime is 670409. The next prime is 670447. The reversal of 670437 is 734076.

It is not a de Polignac number, because 670437 - 2¹⁰ = 669413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 670437.

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 670437.

It is not an unprimeable number, because it can be changed into a prime (670447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7489 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (43680).

2⁶⁷⁰⁴³⁷ is an apocalyptic number.

It is an amenable number.

670437 is a deficient number, since it is larger than the sum of its proper divisors (377883).

670437 is an equidigital number, since it uses as much as digits as its factorization.

670437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 670437 is about 818.8021739102. The cubic root of 670437 is about 87.5224214650.

The spelling of 670437 in words is "six hundred seventy thousand, four hundred thirty-seven".