2358661 has 2 divisors, whose sum is σ = 2358662. Its totient is φ = 2358660.

The previous prime is 2358637. The next prime is 2358677. The reversal of 2358661 is 1668532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 93636 = 1505^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2358661 - 2¹⁹ = 1834373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2352661) 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 as a sum of consecutive naturals, namely, 1179330 + 1179331.

It is an arithmetic number, because the mean of its divisors is an integer number (1179331).

2^2358661 is an apocalyptic number.

It is an amenable number.

2358661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2358661 is an equidigital number, since it uses as much as digits as its factorization.

2358661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 2358661 is about 1535.7932803603. The cubic root of 2358661 is about 133.1134201247.

The spelling of 2358661 in words is "two million, three hundred fifty-eight thousand, six hundred sixty-one".