670381726 has 16 divisors (see below), whose sum is σ = 1151133696. Its totient is φ = 286829496.

The previous prime is 670381721. The next prime is 670381729. The reversal of 670381726 is 627183076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670381721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30946 + ... + 47941.

It is an arithmetic number, because the mean of its divisors is an integer number (71945856).

Almost surely, 2^670381726 is an apocalyptic number.

670381726 is a deficient number, since it is larger than the sum of its proper divisors (480751970).

670381726 is a wasteful number, since it uses less digits than its factorization.

670381726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79503.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 670381726 is about 25891.7308421048. The cubic root of 670381726 is about 875.2001614465.

The spelling of 670381726 in words is "six hundred seventy million, three hundred eighty-one thousand, seven hundred twenty-six".