26434697 has 2 divisors, whose sum is σ = 26434698. Its totient is φ = 26434696.

The previous prime is 26434693. The next prime is 26434699. The reversal of 26434697 is 79643462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24314761 + 2119936 = 4931^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 26434697 - 2² = 26434693 is a prime.

Together with 26434699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26434693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13217348 + 13217349.

It is an arithmetic number, because the mean of its divisors is an integer number (13217349).

Almost surely, 2^26434697 is an apocalyptic number.

It is an amenable number.

26434697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26434697 is an equidigital number, since it uses as much as digits as its factorization.

26434697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 26434697 is about 5141.4683700282. The cubic root of 26434697 is about 297.8915006720.

The spelling of 26434697 in words is "twenty-six million, four hundred thirty-four thousand, six hundred ninety-seven".