26623965 has 16 divisors (see below), whose sum is σ = 43638336. Its totient is φ = 13852800.

The previous prime is 26623963. The next prime is 26623969. The reversal of 26623965 is 56932662.

It is not a de Polignac number, because 26623965 - 2¹ = 26623963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26623963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21031 + ... + 22260.

It is an arithmetic number, because the mean of its divisors is an integer number (2727396).

Almost surely, 2^26623965 is an apocalyptic number.

It is an amenable number.

26623965 is a deficient number, since it is larger than the sum of its proper divisors (17014371).

26623965 is a wasteful number, since it uses less digits than its factorization.

26623965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43340.

The product of its digits is 116640, while the sum is 39.

The square root of 26623965 is about 5159.8415673352. The cubic root of 26623965 is about 298.6007616981.

The spelling of 26623965 in words is "twenty-six million, six hundred twenty-three thousand, nine hundred sixty-five".