670748 has 12 divisors (see below), whose sum is σ = 1264200. Its totient is φ = 309552.

The previous prime is 670739. The next prime is 670763. The reversal of 670748 is 847076.

Added to its reverse (847076) it gives a square (1517824 = 1232²).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6398 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (105350).

2⁶⁷⁰⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

670748 is a deficient number, since it is larger than the sum of its proper divisors (593452).

670748 is a wasteful number, since it uses less digits than its factorization.

670748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916 (or 12914 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 670748 is about 818.9920634536. The cubic root of 670748 is about 87.5359525725.

Adding to 670748 its reverse (847076), we get a square (1517824 = 1232²).

The spelling of 670748 in words is "six hundred seventy thousand, seven hundred forty-eight".