670723652 has 48 divisors (see below), whose sum is σ = 1229437440. Its totient is φ = 319939200.

The previous prime is 670723637. The next prime is 670723663. The reversal of 670723652 is 256327076.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454702 + ... + 1455162.

It is an arithmetic number, because the mean of its divisors is an integer number (25613280).

Almost surely, 2^670723652 is an apocalyptic number.

It is an amenable number.

670723652 is a deficient number, since it is larger than the sum of its proper divisors (558713788).

670723652 is a wasteful number, since it uses less digits than its factorization.

670723652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 670723652 is about 25898.3329965463. The cubic root of 670723652 is about 875.3489338127.

The spelling of 670723652 in words is "six hundred seventy million, seven hundred twenty-three thousand, six hundred fifty-two".