26277961 has 2 divisors, whose sum is σ = 26277962. Its totient is φ = 26277960.

The previous prime is 26277959. The next prime is 26277997. The reversal of 26277961 is 16977262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13461561 + 12816400 = 3669^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 26277961 - 2¹ = 26277959 is a prime.

Together with 26277959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26277941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13138980 + 13138981.

It is an arithmetic number, because the mean of its divisors is an integer number (13138981).

Almost surely, 2^26277961 is an apocalyptic number.

It is an amenable number.

26277961 is a deficient number, since it is larger than the sum of its proper divisors (1).

26277961 is an equidigital number, since it uses as much as digits as its factorization.

26277961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 26277961 is about 5126.2033709169. The cubic root of 26277961 is about 297.3015827342.

The spelling of 26277961 in words is "twenty-six million, two hundred seventy-seven thousand, nine hundred sixty-one".