690345007 has 8 divisors (see below), whose sum is σ = 753910272. Its totient is φ = 626914200.

The previous prime is 690344969. The next prime is 690345077. The reversal of 690345007 is 700543096.

690345007 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 not a de Polignac number, because 690345007 - 2²³ = 681956399 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 (690345077) 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, 22719 + ... + 43552.

It is an arithmetic number, because the mean of its divisors is an integer number (94238784).

Almost surely, 2^690345007 is an apocalyptic number.

690345007 is a deficient number, since it is larger than the sum of its proper divisors (63565265).

690345007 is a wasteful number, since it uses less digits than its factorization.

690345007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67229.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 690345007 is about 26274.4173484399. The cubic root of 690345007 is about 883.8028466204.

The spelling of 690345007 in words is "six hundred ninety million, three hundred forty-five thousand, seven".