670750 has 16 divisors (see below), whose sum is σ = 1256112. Its totient is φ = 268200.

The previous prime is 670739. The next prime is 670763. The reversal of 670750 is 57076.

670750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

670750 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (78507).

2⁶⁷⁰⁷⁵⁰ is an apocalyptic number.

670750 is a deficient number, since it is larger than the sum of its proper divisors (585362).

670750 is a wasteful number, since it uses less digits than its factorization.

670750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 670750 is about 818.9932844658. The cubic root of 670750 is about 87.5360395757.

Adding to 670750 its product of nonzero digits (1470), we get a triangular number (672220 = T₁₁₅₉).

It can be divided in two parts, 6 and 70750, that added together give a square (70756 = 266²).

The spelling of 670750 in words is "six hundred seventy thousand, seven hundred fifty".