670903860 has 192 divisors, whose sum is σ = 2140766208. Its totient is φ = 156816000.

The previous prime is 670903847. The next prime is 670903949. The reversal of 670903860 is 68309076.

It is a super-2 number, since 2×670903860² = 900223978725799200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2475525 + ... + 2475795.

It is an arithmetic number, because the mean of its divisors is an integer number (11149824).

Almost surely, 2^670903860 is an apocalyptic number.

670903860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670903860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070383104).

670903860 is an abundant number, since it is smaller than the sum of its proper divisors (1469862348).

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

670903860 is a wasteful number, since it uses less digits than its factorization.

670903860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 670903860 is about 25901.8119057335. The cubic root of 670903860 is about 875.4273221598.

The spelling of 670903860 in words is "six hundred seventy million, nine hundred three thousand, eight hundred sixty".