668286702 has 48 divisors (see below), whose sum is σ = 1489662720. Its totient is φ = 216416016.

The previous prime is 668286679. The next prime is 668286709. The reversal of 668286702 is 207682866.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668286709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114753 + ... + 120435.

It is an arithmetic number, because the mean of its divisors is an integer number (31034640).

Almost surely, 2^668286702 is an apocalyptic number.

668286702 is an abundant number, since it is smaller than the sum of its proper divisors (821376018).

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

668286702 is a wasteful number, since it uses less digits than its factorization.

668286702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877 (or 5874 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 668286702 is about 25851.2417883552. The cubic root of 668286702 is about 874.2875079374.

The spelling of 668286702 in words is "six hundred sixty-eight million, two hundred eighty-six thousand, seven hundred two".