670197888 has 192 divisors, whose sum is σ = 2071742400. Its totient is φ = 215405568.

The previous prime is 670197841. The next prime is 670197937. The reversal of 670197888 is 888791076.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901645 + ... + 902387.

It is an arithmetic number, because the mean of its divisors is an integer number (10790325).

Almost surely, 2^670197888 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 670197888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035871200).

670197888 is an abundant number, since it is smaller than the sum of its proper divisors (1401544512).

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

670197888 is an equidigital number, since it uses as much as digits as its factorization.

670197888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 670197888 is about 25888.1804690867. The cubic root of 670197888 is about 875.1201524254.

The spelling of 670197888 in words is "six hundred seventy million, one hundred ninety-seven thousand, eight hundred eighty-eight".