26920565 has 8 divisors (see below), whose sum is σ = 36919680. Its totient is φ = 18459792.

The previous prime is 26920513. The next prime is 26920577. The reversal of 26920565 is 56502962.

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 26920565 - 2¹² = 26916469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 769159 = 26920565 / (2 + 6 + 9 + 2 + 0 + 5 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384545 + ... + 384614.

It is an arithmetic number, because the mean of its divisors is an integer number (4614960).

Almost surely, 2^26920565 is an apocalyptic number.

It is an amenable number.

26920565 is a deficient number, since it is larger than the sum of its proper divisors (9999115).

26920565 is an equidigital number, since it uses as much as digits as its factorization.

26920565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769171.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 26920565 is about 5188.5031560172. The cubic root of 26920565 is about 299.7055073044.

The spelling of 26920565 in words is "twenty-six million, nine hundred twenty thousand, five hundred sixty-five".