689894514 has 24 divisors (see below), whose sum is σ = 1546316460. Its totient is φ = 222034848.

The previous prime is 689894509. The next prime is 689894521. The reversal of 689894514 is 415498986.

It can be written as a sum of positive squares in 2 ways, for example, as 667964025 + 21930489 = 25845^2 + 4683^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660297 + ... + 661340.

Almost surely, 2^689894514 is an apocalyptic number.

689894514 is an abundant number, since it is smaller than the sum of its proper divisors (856421946).

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

689894514 is a wasteful number, since it uses less digits than its factorization.

689894514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321674 (or 1321671 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 689894514 is about 26265.8431046864. The cubic root of 689894514 is about 883.6105593687.

The spelling of 689894514 in words is "six hundred eighty-nine million, eight hundred ninety-four thousand, five hundred fourteen".