689594914 has 4 divisors (see below), whose sum is σ = 1034392374. Its totient is φ = 344797456.

The previous prime is 689594909. The next prime is 689594921. The reversal of 689594914 is 419495986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 680322889 + 9272025 = 26083^2 + 3045^2 .

It is a super-2 number, since 2×689594914² = 951082290829334792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172398727 + ... + 172398730.

Almost surely, 2^689594914 is an apocalyptic number.

689594914 is a deficient number, since it is larger than the sum of its proper divisors (344797460).

689594914 is a wasteful number, since it uses less digits than its factorization.

689594914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344797459.

The product of its digits is 2799360, while the sum is 55.

The square root of 689594914 is about 26260.1392608646. The cubic root of 689594914 is about 883.4826325389.

The spelling of 689594914 in words is "six hundred eighty-nine million, five hundred ninety-four thousand, nine hundred fourteen".