690769007 has 4 divisors (see below), whose sum is σ = 731402496. Its totient is φ = 650135520.

The previous prime is 690768977. The next prime is 690769031. The reversal of 690769007 is 700967096.

690769007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 690769007 - 2²⁰ = 689720431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690729007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20316719 + ... + 20316752.

It is an arithmetic number, because the mean of its divisors is an integer number (182850624).

Almost surely, 2^690769007 is an apocalyptic number.

690769007 is a deficient number, since it is larger than the sum of its proper divisors (40633489).

690769007 is a wasteful number, since it uses less digits than its factorization.

690769007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40633488.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 690769007 is about 26282.4847950113. The cubic root of 690769007 is about 883.9837492662.

The spelling of 690769007 in words is "six hundred ninety million, seven hundred sixty-nine thousand, seven".