670734 has 16 divisors (see below), whose sum is σ = 1490640. Its totient is φ = 223560.

The previous prime is 670729. The next prime is 670739. The reversal of 670734 is 437076.

It is an interprime number because it is at equal distance from previous prime (670729) and next prime (670739).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 670698 and 670707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670739) 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, 6157 + ... + 6264.

It is an arithmetic number, because the mean of its divisors is an integer number (93165).

2⁶⁷⁰⁷³⁴ is an apocalyptic number.

670734 is an abundant number, since it is smaller than the sum of its proper divisors (819906).

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

670734 is a wasteful number, since it uses less digits than its factorization.

670734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432 (or 12426 counting only the distinct ones).

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

The square root of 670734 is about 818.9835163176. The cubic root of 670734 is about 87.5353435450.

Adding to 670734 its sum of digits (27), we get a square (670761 = 819²).

670734 divided by its sum of digits (27) gives a palindrome (24842).

The spelling of 670734 in words is "six hundred seventy thousand, seven hundred thirty-four".