670851072 has 168 divisors, whose sum is σ = 2015633256. Its totient is φ = 222953472.

The previous prime is 670851053. The next prime is 670851119. The reversal of 670851072 is 270158076.

670851072 is a `hidden beast` number, since 6 + 70 + 8 + 510 + 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1990488 + ... + 1990824.

It is an arithmetic number, because the mean of its divisors is an integer number (11997817).

Almost surely, 2^670851072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670851072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1007816628).

670851072 is an abundant number, since it is smaller than the sum of its proper divisors (1344782184).

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

670851072 is an frugal number, since it uses more digits than its factorization.

670851072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 670851072 is about 25900.7928836165. The cubic root of 670851072 is about 875.4043614585.

The spelling of 670851072 in words is "six hundred seventy million, eight hundred fifty-one thousand, seventy-two".