26298649 has 8 divisors (see below), whose sum is σ = 28513800. Its totient is φ = 24110976.

The previous prime is 26298619. The next prime is 26298689. The reversal of 26298649 is 94689262.

It can be written as a sum of positive squares in 4 ways, for example, as 1974025 + 24324624 = 1405^2 + 4932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26298649 - 2⁵ = 26298617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26298599 and 26298608.

It is not an unprimeable number, because it can be changed into a prime (26298619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4852 + ... + 8725.

It is an arithmetic number, because the mean of its divisors is an integer number (3564225).

Almost surely, 2^26298649 is an apocalyptic number.

It is an amenable number.

26298649 is a deficient number, since it is larger than the sum of its proper divisors (2215151).

26298649 is a wasteful number, since it uses less digits than its factorization.

26298649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739.

The product of its digits is 373248, while the sum is 46.

The square root of 26298649 is about 5128.2208415785. The cubic root of 26298649 is about 297.3795817056.

The spelling of 26298649 in words is "twenty-six million, two hundred ninety-eight thousand, six hundred forty-nine".