690235627 has 4 divisors (see below), whose sum is σ = 690306760. Its totient is φ = 690164496.

The previous prime is 690235571. The next prime is 690235639. The reversal of 690235627 is 726532096.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 690235627 - 2⁷ = 690235499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 690235627.

It is not an unprimeable number, because it can be changed into a prime (690235657) 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 3 ways as a sum of consecutive naturals, for example, 18177 + ... + 41362.

It is an arithmetic number, because the mean of its divisors is an integer number (172576690).

Almost surely, 2^690235627 is an apocalyptic number.

690235627 is a deficient number, since it is larger than the sum of its proper divisors (71133).

690235627 is a wasteful number, since it uses less digits than its factorization.

690235627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71132.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 690235627 is about 26272.3357735851. The cubic root of 690235627 is about 883.7561668394.

The spelling of 690235627 in words is "six hundred ninety million, two hundred thirty-five thousand, six hundred twenty-seven".