26616797 has 2 divisors, whose sum is σ = 26616798. Its totient is φ = 26616796.

The previous prime is 26616767. The next prime is 26616803. The reversal of 26616797 is 79761662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14638276 + 11978521 = 3826^2 + 3461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26616797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26616767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13308398 + 13308399.

It is an arithmetic number, because the mean of its divisors is an integer number (13308399).

Almost surely, 2^26616797 is an apocalyptic number.

It is an amenable number.

26616797 is a deficient number, since it is larger than the sum of its proper divisors (1).

26616797 is an equidigital number, since it uses as much as digits as its factorization.

26616797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 26616797 is about 5159.1469256070. The cubic root of 26616797 is about 298.5739617533.

The spelling of 26616797 in words is "twenty-six million, six hundred sixteen thousand, seven hundred ninety-seven".