670537 has 4 divisors (see below), whose sum is σ = 766336. Its totient is φ = 574740.

The previous prime is 670517. The next prime is 670541. The reversal of 670537 is 735076.

670537 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 not a de Polignac number, because 670537 - 2⁷ = 670409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670507) 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, 47889 + ... + 47902.

It is an arithmetic number, because the mean of its divisors is an integer number (191584).

2⁶⁷⁰⁵³⁷ is an apocalyptic number.

It is an amenable number.

670537 is a deficient number, since it is larger than the sum of its proper divisors (95799).

670537 is an equidigital number, since it uses as much as digits as its factorization.

670537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95798.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 670537 is about 818.8632364443. The cubic root of 670537 is about 87.5267727598.

The spelling of 670537 in words is "six hundred seventy thousand, five hundred thirty-seven".