670651626 has 32 divisors (see below), whose sum is σ = 1420392960. Its totient is φ = 210510576.

The previous prime is 670651591. The next prime is 670651633. The reversal of 670651626 is 626156076.

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, 1425 + ... + 36651.

It is an arithmetic number, because the mean of its divisors is an integer number (44387280).

Almost surely, 2^670651626 is an apocalyptic number.

670651626 is an abundant number, since it is smaller than the sum of its proper divisors (749741334).

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

670651626 is a wasteful number, since it uses less digits than its factorization.

670651626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35418.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 670651626 is about 25896.9424063923. The cubic root of 670651626 is about 875.3175994278.

The spelling of 670651626 in words is "six hundred seventy million, six hundred fifty-one thousand, six hundred twenty-six".