622802661 has 16 divisors (see below), whose sum is σ = 895526016. Its totient is φ = 382729536.

The previous prime is 622802659. The next prime is 622802683. The reversal of 622802661 is 166208226.

It is not a de Polignac number, because 622802661 - 2¹ = 622802659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622802641) 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 15 ways as a sum of consecutive naturals, for example, 18231 + ... + 39723.

It is an arithmetic number, because the mean of its divisors is an integer number (55970376).

Almost surely, 2^622802661 is an apocalyptic number.

It is an amenable number.

622802661 is a deficient number, since it is larger than the sum of its proper divisors (272723355).

622802661 is a wasteful number, since it uses less digits than its factorization.

622802661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22252.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 622802661 is about 24956.0145255608. The cubic root of 622802661 is about 853.9848243240.

The spelling of 622802661 in words is "six hundred twenty-two million, eight hundred two thousand, six hundred sixty-one".