26730865 has 8 divisors (see below), whose sum is σ = 36659520. Its totient is φ = 18329712.

The previous prime is 26730863. The next prime is 26730877. The reversal of 26730865 is 56803762.

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 26730865 - 2¹ = 26730863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26730863) 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, 381835 + ... + 381904.

It is an arithmetic number, because the mean of its divisors is an integer number (4582440).

Almost surely, 2^26730865 is an apocalyptic number.

It is an amenable number.

26730865 is a deficient number, since it is larger than the sum of its proper divisors (9928655).

26730865 is an equidigital number, since it uses as much as digits as its factorization.

26730865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763751.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 26730865 is about 5170.1900351921. The cubic root of 26730865 is about 298.9998732303. Note that the first 3 decimals are identical.

The spelling of 26730865 in words is "twenty-six million, seven hundred thirty thousand, eight hundred sixty-five".