668587034 has 16 divisors (see below), whose sum is σ = 1013353440. Its totient is φ = 330810480.

The previous prime is 668587019. The next prime is 668587063. The reversal of 668587034 is 430785866.

It is a self number, because there is not a number n which added to its sum of digits gives 668587034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243449 + ... + 246179.

It is an arithmetic number, because the mean of its divisors is an integer number (63334590).

Almost surely, 2^668587034 is an apocalyptic number.

668587034 is a deficient number, since it is larger than the sum of its proper divisors (344766406).

668587034 is a wasteful number, since it uses less digits than its factorization.

668587034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 668587034 is about 25857.0499864157. The cubic root of 668587034 is about 874.4184583166.

The spelling of 668587034 in words is "six hundred sixty-eight million, five hundred eighty-seven thousand, thirty-four".