2906863 has 2 divisors, whose sum is σ = 2906864. Its totient is φ = 2906862.

The previous prime is 2906861. The next prime is 2906879. The reversal of 2906863 is 3686092.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2906863 - 2¹ = 2906861 is a prime.

Together with 2906861, it forms a pair of twin primes.

2906863 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2906861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1453431 + 1453432.

It is an arithmetic number, because the mean of its divisors is an integer number (1453432).

2^2906863 is an apocalyptic number.

2906863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2906863 is an equidigital number, since it uses as much as digits as its factorization.

2906863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2906863 is about 1704.9524920067. The cubic root of 2906863 is about 142.7167195858.

The spelling of 2906863 in words is "two million, nine hundred six thousand, eight hundred sixty-three".