622947245 has 4 divisors (see below), whose sum is σ = 747536700. Its totient is φ = 498357792.

The previous prime is 622947233. The next prime is 622947253. The reversal of 622947245 is 542749226.

622947245 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.

It can be written as a sum of positive squares in 2 ways, for example, as 371217289 + 251729956 = 19267^2 + 15866^2 .

It is a cyclic number.

It is not a de Polignac number, because 622947245 - 2⁴ = 622947229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62294720 + ... + 62294729.

It is an arithmetic number, because the mean of its divisors is an integer number (186884175).

Almost surely, 2^622947245 is an apocalyptic number.

It is an amenable number.

622947245 is a deficient number, since it is larger than the sum of its proper divisors (124589455).

622947245 is a wasteful number, since it uses less digits than its factorization.

622947245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124589454.

The product of its digits is 241920, while the sum is 41.

The square root of 622947245 is about 24958.9111341020. The cubic root of 622947245 is about 854.0509035687.

The spelling of 622947245 in words is "six hundred twenty-two million, nine hundred forty-seven thousand, two hundred forty-five".