667252229 has 4 divisors (see below), whose sum is σ = 762573984. Its totient is φ = 571930476.

The previous prime is 667252217. The next prime is 667252273. The reversal of 667252229 is 922252766.

667252229 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 667252229 - 2¹² = 667248133 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 (667252429) 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, 47660867 + ... + 47660880.

It is an arithmetic number, because the mean of its divisors is an integer number (190643496).

Almost surely, 2^667252229 is an apocalyptic number.

It is an amenable number.

667252229 is a deficient number, since it is larger than the sum of its proper divisors (95321755).

667252229 is an equidigital number, since it uses as much as digits as its factorization.

667252229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95321754.

The product of its digits is 181440, while the sum is 41.

The square root of 667252229 is about 25831.2258516703. The cubic root of 667252229 is about 873.8361577964.

The spelling of 667252229 in words is "six hundred sixty-seven million, two hundred fifty-two thousand, two hundred twenty-nine".