2386661 has 2 divisors, whose sum is σ = 2386662. Its totient is φ = 2386660.

The previous prime is 2386639. The next prime is 2386663. The reversal of 2386661 is 1666832.

2386661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1366561 + 1020100 = 1169^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 2386661 - 2¹⁰ = 2385637 is a prime.

Together with 2386663, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₇₅₃₇₉ and since 2386661 and 175379 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2386663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193330 + 1193331.

It is an arithmetic number, because the mean of its divisors is an integer number (1193331).

2^2386661 is an apocalyptic number.

It is an amenable number.

2386661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2386661 is an equidigital number, since it uses as much as digits as its factorization.

2386661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 2386661 is about 1544.8821961561. The cubic root of 2386661 is about 133.6380855538.

The spelling of 2386661 in words is "two million, three hundred eighty-six thousand, six hundred sixty-one".