668950934 has 4 divisors (see below), whose sum is σ = 1003426404. Its totient is φ = 334475466.

The previous prime is 668950927. The next prime is 668950943. The reversal of 668950934 is 439059866.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167237732 + ... + 167237735.

It is an arithmetic number, because the mean of its divisors is an integer number (250856601).

Almost surely, 2^668950934 is an apocalyptic number.

668950934 is a deficient number, since it is larger than the sum of its proper divisors (334475470).

668950934 is a wasteful number, since it uses less digits than its factorization.

668950934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334475469.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 668950934 is about 25864.0857947850. The cubic root of 668950934 is about 874.5770730010.

The spelling of 668950934 in words is "six hundred sixty-eight million, nine hundred fifty thousand, nine hundred thirty-four".