668827410 has 64 divisors (see below), whose sum is σ = 1628909568. Its totient is φ = 175737024.

The previous prime is 668827409. The next prime is 668827421. The reversal of 668827410 is 14728866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812259 + ... + 813081.

It is an arithmetic number, because the mean of its divisors is an integer number (25451712).

Almost surely, 2^668827410 is an apocalyptic number.

668827410 is an abundant number, since it is smaller than the sum of its proper divisors (960082158).

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

668827410 is a wasteful number, since it uses less digits than its factorization.

668827410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 668827410 is about 25861.6977400943. The cubic root of 668827410 is about 874.5232385053.

The spelling of 668827410 in words is "six hundred sixty-eight million, eight hundred twenty-seven thousand, four hundred ten".