689013399 has 16 divisors (see below), whose sum is σ = 927180000. Its totient is φ = 455110656.

The previous prime is 689013337. The next prime is 689013427. The reversal of 689013399 is 993310986.

It is a happy number.

It is not a de Polignac number, because 689013399 - 2²¹ = 686916247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689013799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198987 + ... + 202419.

It is an arithmetic number, because the mean of its divisors is an integer number (57948750).

Almost surely, 2^689013399 is an apocalyptic number.

689013399 is a deficient number, since it is larger than the sum of its proper divisors (238166601).

689013399 is a wasteful number, since it uses less digits than its factorization.

689013399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 689013399 is about 26249.0647261955. The cubic root of 689013399 is about 883.2342244408.

The spelling of 689013399 in words is "six hundred eighty-nine million, thirteen thousand, three hundred ninety-nine".