622665423 has 6 divisors (see below), whose sum is σ = 899405624. Its totient is φ = 415110276.

The previous prime is 622665391. The next prime is 622665437. The reversal of 622665423 is 324566226.

622665423 is a `hidden beast` number, since 6 + 226 + 6 + 5 + 423 = 666.

It is not a de Polignac number, because 622665423 - 2⁵ = 622665391 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 (622665523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34592515 + ... + 34592532.

Almost surely, 2^622665423 is an apocalyptic number.

622665423 is a deficient number, since it is larger than the sum of its proper divisors (276740201).

622665423 is a wasteful number, since it uses less digits than its factorization.

622665423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69185053 (or 69185050 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 622665423 is about 24953.2647763775. The cubic root of 622665423 is about 853.9220929613.

The spelling of 622665423 in words is "six hundred twenty-two million, six hundred sixty-five thousand, four hundred twenty-three".