670633345 has 16 divisors (see below), whose sum is σ = 814397760. Its totient is φ = 530121024.

The previous prime is 670633331. The next prime is 670633361. The reversal of 670633345 is 543336076.

670633345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670633345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143587 + ... + 148183.

It is an arithmetic number, because the mean of its divisors is an integer number (50899860).

Almost surely, 2^670633345 is an apocalyptic number.

It is an amenable number.

670633345 is a deficient number, since it is larger than the sum of its proper divisors (143764415).

670633345 is a wasteful number, since it uses less digits than its factorization.

670633345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944.

The product of its (nonzero) digits is 136080, while the sum is 37.

The square root of 670633345 is about 25896.5894472612. The cubic root of 670633345 is about 875.3096460554.

The spelling of 670633345 in words is "six hundred seventy million, six hundred thirty-three thousand, three hundred forty-five".