670881860 has 24 divisors (see below), whose sum is σ = 1536929856. Its totient is φ = 243956960.

The previous prime is 670881847. The next prime is 670881889. The reversal of 670881860 is 68188076.

It is a super-3 number, since 3×670881860³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524512 + ... + 1524951.

It is an arithmetic number, because the mean of its divisors is an integer number (64038744).

Almost surely, 2^670881860 is an apocalyptic number.

It is an amenable number.

670881860 is an abundant number, since it is smaller than the sum of its proper divisors (866047996).

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

670881860 is a wasteful number, since it uses less digits than its factorization.

670881860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049483 (or 3049481 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 670881860 is about 25901.3872215370. The cubic root of 670881860 is about 875.4177531725.

The spelling of 670881860 in words is "six hundred seventy million, eight hundred eighty-one thousand, eight hundred sixty".