670251672 has 40 divisors (see below), whose sum is σ = 1877327100. Its totient is φ = 223417008.

The previous prime is 670251653. The next prime is 670251677. The reversal of 670251672 is 276152076.

670251672 is a `hidden beast` number, since 6 + 70 + 2 + 516 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670251677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 516522 + ... + 517817.

Almost surely, 2^670251672 is an apocalyptic number.

It is an amenable number.

670251672 is an abundant number, since it is smaller than the sum of its proper divisors (1207075428).

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

670251672 is a wasteful number, since it uses less digits than its factorization.

670251672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034357 (or 1034344 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 670251672 is about 25889.2192234528. The cubic root of 670251672 is about 875.1435615330.

The spelling of 670251672 in words is "six hundred seventy million, two hundred fifty-one thousand, six hundred seventy-two".