2422661 has 2 divisors, whose sum is σ = 2422662. Its totient is φ = 2422660.

The previous prime is 2422657. The next prime is 2422691. The reversal of 2422661 is 1662242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1674436 + 748225 = 1294^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422661 - 2² = 2422657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2422621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211330 + 1211331.

It is an arithmetic number, because the mean of its divisors is an integer number (1211331).

2^2422661 is an apocalyptic number.

It is an amenable number.

2422661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2422661 is an equidigital number, since it uses as much as digits as its factorization.

2422661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 2422661 is about 1556.4899614196. The cubic root of 2422661 is about 134.3066601120.

The spelling of 2422661 in words is "two million, four hundred twenty-two thousand, six hundred sixty-one".