868722698 has 4 divisors (see below), whose sum is σ = 1303084050. Its totient is φ = 434361348.

The previous prime is 868722683. The next prime is 868722707. The reversal of 868722698 is 896227868.

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

It can be written as a sum of positive squares in only one way, i.e., 868304089 + 418609 = 29467^2 + 647^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217180673 + ... + 217180676.

Almost surely, 2^868722698 is an apocalyptic number.

868722698 is a deficient number, since it is larger than the sum of its proper divisors (434361352).

868722698 is a wasteful number, since it uses less digits than its factorization.

868722698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434361351.

The product of its digits is 4644864, while the sum is 56.

The square root of 868722698 is about 29474.1021576570. The cubic root of 868722698 is about 954.1728528685.

The spelling of 868722698 in words is "eight hundred sixty-eight million, seven hundred twenty-two thousand, six hundred ninety-eight".