670447380 has 24 divisors (see below), whose sum is σ = 1877252832. Its totient is φ = 178785952.

The previous prime is 670447373. The next prime is 670447409. The reversal of 670447380 is 83744076.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5587002 + ... + 5587121.

It is an arithmetic number, because the mean of its divisors is an integer number (78218868).

Almost surely, 2^670447380 is an apocalyptic number.

670447380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670447380 is an abundant number, since it is smaller than the sum of its proper divisors (1206805452).

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

670447380 is a wasteful number, since it uses less digits than its factorization.

670447380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174135 (or 11174133 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 670447380 is about 25892.9986675935. The cubic root of 670447380 is about 875.2287314952.

The spelling of 670447380 in words is "six hundred seventy million, four hundred forty-seven thousand, three hundred eighty".