689013002 has 4 divisors (see below), whose sum is σ = 1033519506. Its totient is φ = 344506500.

The previous prime is 689012999. The next prime is 689013007. The reversal of 689013002 is 200310986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200310986 = 2 ⋅100155493.

It can be written as a sum of positive squares in only one way, i.e., 579413041 + 109599961 = 24071^2 + 10469^2 .

It is not an unprimeable number, because it can be changed into a prime (689013007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172253249 + ... + 172253252.

Almost surely, 2^689013002 is an apocalyptic number.

689013002 is a deficient number, since it is larger than the sum of its proper divisors (344506504).

689013002 is a wasteful number, since it uses less digits than its factorization.

689013002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344506503.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 689013002 is about 26249.0571640202. The cubic root of 689013002 is about 883.2340548050.

Adding to 689013002 its reverse (200310986), we get a palindrome (889323988).

The spelling of 689013002 in words is "six hundred eighty-nine million, thirteen thousand, two".