650668838 has 8 divisors (see below), whose sum is σ = 979715088. Its totient is φ = 324097144.

The previous prime is 650668817. The next prime is 650668841. The reversal of 650668838 is 838866056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617981 + ... + 619032.

It is an arithmetic number, because the mean of its divisors is an integer number (122464386).

Almost surely, 2^650668838 is an apocalyptic number.

650668838 is a deficient number, since it is larger than the sum of its proper divisors (329046250).

650668838 is a wasteful number, since it uses less digits than its factorization.

650668838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237278.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 650668838 is about 25508.2111877725. The cubic root of 650668838 is about 866.5361181730.

The spelling of 650668838 in words is "six hundred fifty million, six hundred sixty-eight thousand, eight hundred thirty-eight".