690805275 has 24 divisors (see below), whose sum is σ = 1145623104. Its totient is φ = 367303200.

The previous prime is 690805237. The next prime is 690805301. The reversal of 690805275 is 572508096.

690805275 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 690805275 - 2¹⁰ = 690804251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10912 + ... + 38738.

It is an arithmetic number, because the mean of its divisors is an integer number (47734296).

Almost surely, 2^690805275 is an apocalyptic number.

690805275 is a deficient number, since it is larger than the sum of its proper divisors (454817829).

690805275 is a wasteful number, since it uses less digits than its factorization.

690805275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28171 (or 28166 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 690805275 is about 26283.1747511597. The cubic root of 690805275 is about 883.9992198317. Note that the first 3 decimals are identical.

The spelling of 690805275 in words is "six hundred ninety million, eight hundred five thousand, two hundred seventy-five".