26769661 has 2 divisors, whose sum is σ = 26769662. Its totient is φ = 26769660.

The previous prime is 26769643. The next prime is 26769683. The reversal of 26769661 is 16696762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23707161 + 3062500 = 4869^2 + 1750^2 .

It is a cyclic number.

It is not a de Polignac number, because 26769661 - 2¹⁵ = 26736893 is a prime.

It is a super-2 number, since 2×26769661² = 1433229500109842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26769601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13384830 + 13384831.

It is an arithmetic number, because the mean of its divisors is an integer number (13384831).

Almost surely, 2^26769661 is an apocalyptic number.

It is an amenable number.

26769661 is a deficient number, since it is larger than the sum of its proper divisors (1).

26769661 is an equidigital number, since it uses as much as digits as its factorization.

26769661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 26769661 is about 5173.9405678844. The cubic root of 26769661 is about 299.1444550548.

The spelling of 26769661 in words is "twenty-six million, seven hundred sixty-nine thousand, six hundred sixty-one".