26880331 has 2 divisors, whose sum is σ = 26880332. Its totient is φ = 26880330.

The previous prime is 26880319. The next prime is 26880367. The reversal of 26880331 is 13308862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26880331 is a prime.

It is a super-2 number, since 2×26880331² = 1445104389339122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26880293 and 26880302.

It is not a weakly prime, because it can be changed into another prime (26880311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13440165 + 13440166.

It is an arithmetic number, because the mean of its divisors is an integer number (13440166).

Almost surely, 2^26880331 is an apocalyptic number.

26880331 is a deficient number, since it is larger than the sum of its proper divisors (1).

26880331 is an equidigital number, since it uses as much as digits as its factorization.

26880331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 26880331 is about 5184.6244801335. The cubic root of 26880331 is about 299.5561250555.

The spelling of 26880331 in words is "twenty-six million, eight hundred eighty thousand, three hundred thirty-one".