26376989 has 2 divisors, whose sum is σ = 26376990. Its totient is φ = 26376988.

The previous prime is 26376983. The next prime is 26377031. The reversal of 26376989 is 98967362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13380964 + 12996025 = 3658^2 + 3605^2 .

It is a cyclic number.

It is not a de Polignac number, because 26376989 - 2⁸ = 26376733 is a prime.

It is a super-2 number, since 2×26376989² = 1391491097412242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26376983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13188494 + 13188495.

It is an arithmetic number, because the mean of its divisors is an integer number (13188495).

Almost surely, 2^26376989 is an apocalyptic number.

It is an amenable number.

26376989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26376989 is an equidigital number, since it uses as much as digits as its factorization.

26376989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 26376989 is about 5135.8532884030. The cubic root of 26376989 is about 297.6745730577.

The spelling of 26376989 in words is "twenty-six million, three hundred seventy-six thousand, nine hundred eighty-nine".