26488997 has 2 divisors, whose sum is σ = 26488998. Its totient is φ = 26488996.

The previous prime is 26488991. The next prime is 26489017. The reversal of 26488997 is 79988462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 9728161 = 4094^2 + 3119^2 .

It is a cyclic number.

It is not a de Polignac number, because 26488997 - 2⁶ = 26488933 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 (26488991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13244498 + 13244499.

It is an arithmetic number, because the mean of its divisors is an integer number (13244499).

Almost surely, 2^26488997 is an apocalyptic number.

It is an amenable number.

26488997 is a deficient number, since it is larger than the sum of its proper divisors (1).

26488997 is an equidigital number, since it uses as much as digits as its factorization.

26488997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 26488997 is about 5146.7462537024. The cubic root of 26488997 is about 298.0953293198.

The spelling of 26488997 in words is "twenty-six million, four hundred eighty-eight thousand, nine hundred ninety-seven".