688342802 has 16 divisors (see below), whose sum is σ = 1180421952. Its totient is φ = 294902640.

The previous prime is 688342763. The next prime is 688342829. The reversal of 688342802 is 208243886.

It is a super-2 number, since 2×688342802² = 947631626130422408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 688342802.

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, 45677 + ... + 58847.

It is an arithmetic number, because the mean of its divisors is an integer number (73776372).

Almost surely, 2^688342802 is an apocalyptic number.

688342802 is a deficient number, since it is larger than the sum of its proper divisors (492079150).

688342802 is a wasteful number, since it uses less digits than its factorization.

688342802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16913.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 688342802 is about 26236.2878852935. The cubic root of 688342802 is about 882.9475892412.

The spelling of 688342802 in words is "six hundred eighty-eight million, three hundred forty-two thousand, eight hundred two".