670632 has 16 divisors (see below), whose sum is σ = 1676640. Its totient is φ = 223536.

The previous prime is 670627. The next prime is 670639. The reversal of 670632 is 236076.

670632 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 (24), and also a Moran number because the ratio is a prime number: 27943 = 670632 / (6 + 7 + 0 + 6 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (670639) by changing a digit.

670632 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 3 ways as a sum of consecutive naturals, for example, 13948 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (104790).

2⁶⁷⁰⁶³² is an apocalyptic number.

It is an amenable number.

670632 is an abundant number, since it is smaller than the sum of its proper divisors (1006008).

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

670632 is a wasteful number, since it uses less digits than its factorization.

670632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27952 (or 27948 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 670632 is about 818.9212416344. The cubic root of 670632 is about 87.5309060891.

The spelling of 670632 in words is "six hundred seventy thousand, six hundred thirty-two".