670346886 has 16 divisors (see below), whose sum is σ = 1462575168. Its totient is φ = 203135400.

The previous prime is 670346881. The next prime is 670346917. The reversal of 670346886 is 688643076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670346881) by changing a digit.

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, 5078320 + ... + 5078451.

It is an arithmetic number, because the mean of its divisors is an integer number (91410948).

Almost surely, 2^670346886 is an apocalyptic number.

670346886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

670346886 is an abundant number, since it is smaller than the sum of its proper divisors (792228282).

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

670346886 is a wasteful number, since it uses less digits than its factorization.

670346886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156787.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 670346886 is about 25891.0580316834. The cubic root of 670346886 is about 875.1849996858.

It can be divided in two parts, 67034 and 6886, that added together give a triangular number (73920 = T₃₈₄).

The spelling of 670346886 in words is "six hundred seventy million, three hundred forty-six thousand, eight hundred eighty-six".