2659963 has 2 divisors, whose sum is σ = 2659964. Its totient is φ = 2659962.

The previous prime is 2659949. The next prime is 2659999. The reversal of 2659963 is 3699562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2659963 - 2⁵ = 2659931 is a prime.

It is a super-2 number, since 2×2659963² = 14150806322738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2659903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329981 + 1329982.

It is an arithmetic number, because the mean of its divisors is an integer number (1329982).

2^2659963 is an apocalyptic number.

2659963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659963 is an equidigital number, since it uses as much as digits as its factorization.

2659963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The square root of 2659963 is about 1630.9392999128. The cubic root of 2659963 is about 138.5559557903. Note that the first 3 decimals are identical.

It can be divided in two parts, 26599 and 63, that added together give a palindrome (26662).

The spelling of 2659963 in words is "two million, six hundred fifty-nine thousand, nine hundred sixty-three".