2660863 has 2 divisors, whose sum is σ = 2660864. Its totient is φ = 2660862.

The previous prime is 2660849. The next prime is 2660869. The reversal of 2660863 is 3680662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660863 - 2⁵ = 2660831 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330431 + 1330432.

It is an arithmetic number, because the mean of its divisors is an integer number (1330432).

2^2660863 is an apocalyptic number.

2660863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660863 is an equidigital number, since it uses as much as digits as its factorization.

2660863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2660863 is about 1631.2151911995. The cubic root of 2660863 is about 138.5715808571.

The spelling of 2660863 in words is "two million, six hundred sixty thousand, eight hundred sixty-three".