26861567 has 2 divisors, whose sum is σ = 26861568. Its totient is φ = 26861566.

The previous prime is 26861563. The next prime is 26861587. The reversal of 26861567 is 76516862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26861567 - 2² = 26861563 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26861563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13430783 + 13430784.

It is an arithmetic number, because the mean of its divisors is an integer number (13430784).

Almost surely, 2^26861567 is an apocalyptic number.

26861567 is a deficient number, since it is larger than the sum of its proper divisors (1).

26861567 is an equidigital number, since it uses as much as digits as its factorization.

26861567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 26861567 is about 5182.8145828305. The cubic root of 26861567 is about 299.4864064257.

The spelling of 26861567 in words is "twenty-six million, eight hundred sixty-one thousand, five hundred sixty-seven".