670565072 has 10 divisors (see below), whose sum is σ = 1299219858. Its totient is φ = 335282528.

The previous prime is 670565053. The next prime is 670565087. The reversal of 670565072 is 270565076.

It can be written as a sum of positive squares in only one way, i.e., 450458176 + 220106896 = 21224^2 + 14836^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20955143 + ... + 20955174.

Almost surely, 2^670565072 is an apocalyptic number.

It is an amenable number.

670565072 is a deficient number, since it is larger than the sum of its proper divisors (628654786).

670565072 is a wasteful number, since it uses less digits than its factorization.

670565072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41910325 (or 41910319 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 670565072 is about 25895.2712285467. The cubic root of 670565072 is about 875.2799417746.

The spelling of 670565072 in words is "six hundred seventy million, five hundred sixty-five thousand, seventy-two".