622885349 has 4 divisors (see below), whose sum is σ = 623704620. Its totient is φ = 622066080.

The previous prime is 622885339. The next prime is 622885357. The reversal of 622885349 is 943588226.

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 72982849 + 549902500 = 8543^2 + 23450^2 .

It is a cyclic number.

It is not a de Polignac number, because 622885349 - 2²⁴ = 606108133 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 (622885339) 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, 408494 + ... + 410015.

It is an arithmetic number, because the mean of its divisors is an integer number (155926155).

Almost surely, 2^622885349 is an apocalyptic number.

It is an amenable number.

622885349 is a deficient number, since it is larger than the sum of its proper divisors (819271).

622885349 is an equidigital number, since it uses as much as digits as its factorization.

622885349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819270.

The product of its digits is 829440, while the sum is 47.

The square root of 622885349 is about 24957.6711453613. The cubic root of 622885349 is about 854.0226164833.

The spelling of 622885349 in words is "six hundred twenty-two million, eight hundred eighty-five thousand, three hundred forty-nine".