690065259 has 16 divisors (see below), whose sum is σ = 1004822784. Its totient is φ = 418672800.

The previous prime is 690065221. The next prime is 690065263. The reversal of 690065259 is 952560096.

690065259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 690065259 - 2⁹ = 690064747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 690065259.

It is not an unprimeable number, because it can be changed into a prime (690065359) 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, 121837 + ... + 127374.

It is an arithmetic number, because the mean of its divisors is an integer number (62801424).

Almost surely, 2^690065259 is an apocalyptic number.

690065259 is a deficient number, since it is larger than the sum of its proper divisors (314757525).

690065259 is a wasteful number, since it uses less digits than its factorization.

690065259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249298.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 690065259 is about 26269.0932275935. The cubic root of 690065259 is about 883.6834495652.

The spelling of 690065259 in words is "six hundred ninety million, sixty-five thousand, two hundred fifty-nine".