26632891 has 2 divisors, whose sum is σ = 26632892. Its totient is φ = 26632890.

The previous prime is 26632877. The next prime is 26632901. The reversal of 26632891 is 19823662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26632891 - 2¹¹ = 26630843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26632891.

It is not a weakly prime, because it can be changed into another prime (26632841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13316445 + 13316446.

It is an arithmetic number, because the mean of its divisors is an integer number (13316446).

Almost surely, 2^26632891 is an apocalyptic number.

26632891 is a deficient number, since it is larger than the sum of its proper divisors (1).

26632891 is an equidigital number, since it uses as much as digits as its factorization.

26632891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 26632891 is about 5160.7064438892. The cubic root of 26632891 is about 298.6341277851.

The spelling of 26632891 in words is "twenty-six million, six hundred thirty-two thousand, eight hundred ninety-one".