689727296 has 14 divisors (see below), whose sum is σ = 1368677730. Its totient is φ = 344863616.

The previous prime is 689727293. The next prime is 689727301. The reversal of 689727296 is 692727986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 444366400 + 245360896 = 21080^2 + 15664^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689727293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388431 + ... + 5388558.

It is an arithmetic number, because the mean of its divisors is an integer number (97762695).

Almost surely, 2^689727296 is an apocalyptic number.

It is an amenable number.

689727296 is a deficient number, since it is larger than the sum of its proper divisors (678950434).

689727296 is a wasteful number, since it uses less digits than its factorization.

689727296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777001 (or 10776991 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 56.

The square root of 689727296 is about 26262.6597282149. The cubic root of 689727296 is about 883.5391631737.

The spelling of 689727296 in words is "six hundred eighty-nine million, seven hundred twenty-seven thousand, two hundred ninety-six".