26500993 has 2 divisors, whose sum is σ = 26500994. Its totient is φ = 26500992.

The previous prime is 26500961. The next prime is 26501039. The reversal of 26500993 is 39900562.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26132544 + 368449 = 5112^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 26500993 - 2⁵ = 26500961 is a prime.

It is not a weakly prime, because it can be changed into another prime (26500913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250496 + 13250497.

It is an arithmetic number, because the mean of its divisors is an integer number (13250497).

Almost surely, 2^26500993 is an apocalyptic number.

It is an amenable number.

26500993 is a deficient number, since it is larger than the sum of its proper divisors (1).

26500993 is an equidigital number, since it uses as much as digits as its factorization.

26500993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 26500993 is about 5147.9115182761. The cubic root of 26500993 is about 298.1403217355.

The spelling of 26500993 in words is "twenty-six million, five hundred thousand, nine hundred ninety-three".