689544622 has 16 divisors (see below), whose sum is σ = 1114424640. Its totient is φ = 318095712.

The previous prime is 689544619. The next prime is 689544631. The reversal of 689544622 is 226445986.

It is a congruent number.

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, 60904 + ... + 71332.

It is an arithmetic number, because the mean of its divisors is an integer number (69651540).

Almost surely, 2^689544622 is an apocalyptic number.

689544622 is a deficient number, since it is larger than the sum of its proper divisors (424880018).

689544622 is a wasteful number, since it uses less digits than its factorization.

689544622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987.

The product of its digits is 829440, while the sum is 46.

The square root of 689544622 is about 26259.1816704177. The cubic root of 689544622 is about 883.4611546211.

The spelling of 689544622 in words is "six hundred eighty-nine million, five hundred forty-four thousand, six hundred twenty-two".