689342902 has 12 divisors (see below), whose sum is σ = 1051975260. Its totient is φ = 338689376.

The previous prime is 689342873. The next prime is 689342909. The reversal of 689342902 is 209243986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689342909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283998 + ... + 286414.

It is an arithmetic number, because the mean of its divisors is an integer number (87664605).

Almost surely, 2^689342902 is an apocalyptic number.

689342902 is a deficient number, since it is larger than the sum of its proper divisors (362632358).

689342902 is an frugal number, since it uses more digits than its factorization.

689342902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 2478 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 689342902 is about 26255.3404472309. The cubic root of 689342902 is about 883.3749967137.

The spelling of 689342902 in words is "six hundred eighty-nine million, three hundred forty-two thousand, nine hundred two".