26328921 has 8 divisors (see below), whose sum is σ = 35162400. Its totient is φ = 17524032.

The previous prime is 26328917. The next prime is 26328961. The reversal of 26328921 is 12982362.

It is a happy number.

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

It is not a de Polignac number, because 26328921 - 2² = 26328917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26328961) 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, 4896 + ... + 8753.

It is an arithmetic number, because the mean of its divisors is an integer number (4395300).

Almost surely, 2^26328921 is an apocalyptic number.

It is an amenable number.

26328921 is a deficient number, since it is larger than the sum of its proper divisors (8833479).

26328921 is a wasteful number, since it uses less digits than its factorization.

26328921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14295.

The product of its digits is 10368, while the sum is 33.

The square root of 26328921 is about 5131.1715036627. The cubic root of 26328921 is about 297.4936410853.

The spelling of 26328921 in words is "twenty-six million, three hundred twenty-eight thousand, nine hundred twenty-one".