2963223661 has 4 divisors (see below), whose sum is σ = 2963359324. Its totient is φ = 2963088000.

The previous prime is 2963223631. The next prime is 2963223667. The reversal of 2963223661 is 1663223692.

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 2340721161 + 622502500 = 48381^2 + 24950^2 .

It is a 4-Lehmer number, since φ(2963223661) divides (2963223661-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 2963223661 - 2¹⁷ = 2963092589 is a prime.

It is a super-2 number, since 2×2963223661² = 17561388930220485842, which contains 22 as substring.

It is the 54436-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2963223667) by changing a digit.

It is a nontrivial repunit in base 54435.

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 3 ways as a sum of consecutive naturals, for example, 26790 + ... + 81511.

It is an arithmetic number, because the mean of its divisors is an integer number (740839831).

Almost surely, 2^2963223661 is an apocalyptic number.

It is an amenable number.

2963223661 is a deficient number, since it is larger than the sum of its proper divisors (135663).

2963223661 is a wasteful number, since it uses less digits than its factorization.

2963223661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135662.

The product of its digits is 139968, while the sum is 40.

The square root of 2963223661 is about 54435.5000068889. The cubic root of 2963223661 is about 1436.3319163863.

The spelling of 2963223661 in words is "two billion, nine hundred sixty-three million, two hundred twenty-three thousand, six hundred sixty-one".