689098734 has 12 divisors (see below), whose sum is σ = 1493047296. Its totient is φ = 229699572.

The previous prime is 689098733. The next prime is 689098741. The reversal of 689098734 is 437890986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689098733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19141614 + ... + 19141649.

It is an arithmetic number, because the mean of its divisors is an integer number (124420608).

Almost surely, 2^689098734 is an apocalyptic number.

689098734 is an abundant number, since it is smaller than the sum of its proper divisors (803948562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689098734 is a wasteful number, since it uses less digits than its factorization.

689098734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38283271 (or 38283268 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 689098734 is about 26250.6901623557. The cubic root of 689098734 is about 883.2706860836.

The spelling of 689098734 in words is "six hundred eighty-nine million, ninety-eight thousand, seven hundred thirty-four".