690704069 has 8 divisors (see below), whose sum is σ = 757068960. Its totient is φ = 624934800.

The previous prime is 690704041. The next prime is 690704071. The reversal of 690704069 is 960407096.

690704069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690704069 - 2²⁰ = 689655493 is a prime.

It is a super-2 number, since 2×690704069² = 954144221866313522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690704029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146474 + ... + 151115.

It is an arithmetic number, because the mean of its divisors is an integer number (94633620).

Almost surely, 2^690704069 is an apocalyptic number.

It is an amenable number.

690704069 is a deficient number, since it is larger than the sum of its proper divisors (66364891).

690704069 is a wasteful number, since it uses less digits than its factorization.

690704069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297811.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 690704069 is about 26281.2493804994. The cubic root of 690704069 is about 883.9560478035.

The spelling of 690704069 in words is "six hundred ninety million, seven hundred four thousand, sixty-nine".