26745731 has 2 divisors, whose sum is σ = 26745732. Its totient is φ = 26745730.

The previous prime is 26745721. The next prime is 26745739. The reversal of 26745731 is 13754762.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26745731 is a prime.

It is a super-2 number, since 2×26745731² = 1430668253448722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26745691 and 26745700.

It is not a weakly prime, because it can be changed into another prime (26745739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13372865 + 13372866.

It is an arithmetic number, because the mean of its divisors is an integer number (13372866).

Almost surely, 2^26745731 is an apocalyptic number.

26745731 is a deficient number, since it is larger than the sum of its proper divisors (1).

26745731 is an equidigital number, since it uses as much as digits as its factorization.

26745731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 26745731 is about 5171.6275001202. The cubic root of 26745731 is about 299.0552911697.

The spelling of 26745731 in words is "twenty-six million, seven hundred forty-five thousand, seven hundred thirty-one".