26680965 has 8 divisors (see below), whose sum is σ = 42689568. Its totient is φ = 14229840.

The previous prime is 26680963. The next prime is 26680991. The reversal of 26680965 is 56908662.

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

It is not a de Polignac number, because 26680965 - 2¹ = 26680963 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26680961) 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 7 ways as a sum of consecutive naturals, for example, 889351 + ... + 889380.

It is an arithmetic number, because the mean of its divisors is an integer number (5336196).

Almost surely, 2^26680965 is an apocalyptic number.

It is an amenable number.

26680965 is a deficient number, since it is larger than the sum of its proper divisors (16008603).

26680965 is a wasteful number, since it uses less digits than its factorization.

26680965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778739.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 26680965 is about 5165.3620395864. The cubic root of 26680965 is about 298.8137040787.

The spelling of 26680965 in words is "twenty-six million, six hundred eighty thousand, nine hundred sixty-five".