670723902 has 40 divisors (see below), whose sum is σ = 1582026600. Its totient is φ = 211806576.

The previous prime is 670723877. The next prime is 670723909. The reversal of 670723902 is 209327076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670723909) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 105877 + ... + 112032.

It is an arithmetic number, because the mean of its divisors is an integer number (39550665).

Almost surely, 2^670723902 is an apocalyptic number.

670723902 is an abundant number, since it is smaller than the sum of its proper divisors (911302698).

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

670723902 is a wasteful number, since it uses less digits than its factorization.

670723902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217942 (or 217933 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 670723902 is about 25898.3378231114. The cubic root of 670723902 is about 875.3490425695.

The spelling of 670723902 in words is "six hundred seventy million, seven hundred twenty-three thousand, nine hundred two".