2658863 has 2 divisors, whose sum is σ = 2658864. Its totient is φ = 2658862.

The previous prime is 2658847. The next prime is 2658871. The reversal of 2658863 is 3688562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2658863 - 2⁴ = 2658847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2658833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329431 + 1329432.

It is an arithmetic number, because the mean of its divisors is an integer number (1329432).

2^2658863 is an apocalyptic number.

2658863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2658863 is an equidigital number, since it uses as much as digits as its factorization.

2658863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 2658863 is about 1630.6020360591. The cubic root of 2658863 is about 138.5368536993.

The spelling of 2658863 in words is "two million, six hundred fifty-eight thousand, eight hundred sixty-three".