26860513 has 2 divisors, whose sum is σ = 26860514. Its totient is φ = 26860512.

The previous prime is 26860487. The next prime is 26860541. The reversal of 26860513 is 31506862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24920064 + 1940449 = 4992^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26860513 is a prime.

It is not a weakly prime, because it can be changed into another prime (26860013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13430256 + 13430257.

It is an arithmetic number, because the mean of its divisors is an integer number (13430257).

Almost surely, 2^26860513 is an apocalyptic number.

It is an amenable number.

26860513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26860513 is an equidigital number, since it uses as much as digits as its factorization.

26860513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26860513 is about 5182.7128996308. The cubic root of 26860513 is about 299.4824892703.

The spelling of 26860513 in words is "twenty-six million, eight hundred sixty thousand, five hundred thirteen".