26690361 has 16 divisors (see below), whose sum is σ = 36573120. Its totient is φ = 17307200.

The previous prime is 26690297. The next prime is 26690371. The reversal of 26690361 is 16309662.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26690361 - 2⁶ = 26690297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26690371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17131 + ... + 18623.

It is an arithmetic number, because the mean of its divisors is an integer number (2285820).

Almost surely, 2^26690361 is an apocalyptic number.

It is an amenable number.

26690361 is a deficient number, since it is larger than the sum of its proper divisors (9882759).

26690361 is a wasteful number, since it uses less digits than its factorization.

26690361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 26690361 is about 5166.2714795102. The cubic root of 26690361 is about 298.8487768237.

The spelling of 26690361 in words is "twenty-six million, six hundred ninety thousand, three hundred sixty-one".