26792989 has 2 divisors, whose sum is σ = 26792990. Its totient is φ = 26792988.

The previous prime is 26792951. The next prime is 26792993. The reversal of 26792989 is 98929762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25452025 + 1340964 = 5045^2 + 1158^2 .

It is a cyclic number.

It is not a de Polignac number, because 26792989 - 2¹⁵ = 26760221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26792939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13396494 + 13396495.

It is an arithmetic number, because the mean of its divisors is an integer number (13396495).

Almost surely, 2^26792989 is an apocalyptic number.

It is an amenable number.

26792989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26792989 is an equidigital number, since it uses as much as digits as its factorization.

26792989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 26792989 is about 5176.1944515252. The cubic root of 26792989 is about 299.2313247359.

The spelling of 26792989 in words is "twenty-six million, seven hundred ninety-two thousand, nine hundred eighty-nine".