26620001 has 8 divisors (see below), whose sum is σ = 27471360. Its totient is φ = 25780608.

The previous prime is 26619991. The next prime is 26620003. The reversal of 26620001 is 10002662.

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 26620001 - 2¹⁸ = 26357857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26620003) 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, 1640 + ... + 7478.

It is an arithmetic number, because the mean of its divisors is an integer number (3433920).

Almost surely, 2^26620001 is an apocalyptic number.

It is an amenable number.

26620001 is a deficient number, since it is larger than the sum of its proper divisors (851359).

26620001 is an equidigital number, since it uses as much as digits as its factorization.

26620001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5983.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 26620001 is about 5159.4574327152. The cubic root of 26620001 is about 298.5859415643.

Adding to 26620001 its reverse (10002662), we get a palindrome (36622663).

The spelling of 26620001 in words is "twenty-six million, six hundred twenty thousand, one".