622604491 has 16 divisors (see below), whose sum is σ = 644785120. Its totient is φ = 600929280.

The previous prime is 622604471. The next prime is 622604533. The reversal of 622604491 is 194406226.

It is a cyclic number.

It is not a de Polignac number, because 622604491 - 2⁷ = 622604363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622604471) 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 15 ways as a sum of consecutive naturals, for example, 822085 + ... + 822841.

It is an arithmetic number, because the mean of its divisors is an integer number (40299070).

Almost surely, 2^622604491 is an apocalyptic number.

622604491 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

622604491 is a deficient number, since it is larger than the sum of its proper divisors (22180629).

622604491 is a wasteful number, since it uses less digits than its factorization.

622604491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 622604491 is about 24952.0438241039. The cubic root of 622604491 is about 853.8942380457.

The spelling of 622604491 in words is "six hundred twenty-two million, six hundred four thousand, four hundred ninety-one".