690622227 has 8 divisors (see below), whose sum is σ = 1023144080. Its totient is φ = 460414800.

The previous prime is 690622169. The next prime is 690622237. The reversal of 690622227 is 722226096.

690622227 is a `hidden beast` number, since 6 + 9 + 0 + 622 + 2 + 27 = 666.

It is not a de Polignac number, because 690622227 - 2⁷ = 690622099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690622191 and 690622200.

It is not an unprimeable number, because it can be changed into a prime (690622237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12789274 + ... + 12789327.

It is an arithmetic number, because the mean of its divisors is an integer number (127893010).

Almost surely, 2^690622227 is an apocalyptic number.

690622227 is a deficient number, since it is larger than the sum of its proper divisors (332521853).

690622227 is a wasteful number, since it uses less digits than its factorization.

690622227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578610 (or 25578604 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 690622227 is about 26279.6922927191. The cubic root of 690622227 is about 883.9211329045.

It can be divided in two parts, 69062 and 2227, that added together give a square (71289 = 267²).

The spelling of 690622227 in words is "six hundred ninety million, six hundred twenty-two thousand, two hundred twenty-seven".