26221793 has 8 divisors (see below), whose sum is σ = 28293888. Its totient is φ = 24157584.

The previous prime is 26221781. The next prime is 26221799. The reversal of 26221793 is 39712262.

It is a happy number.

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 26221793 - 2¹⁴ = 26205409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26221799) 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, 6230 + ... + 9552.

It is an arithmetic number, because the mean of its divisors is an integer number (3536736).

Almost surely, 2^26221793 is an apocalyptic number.

It is an amenable number.

26221793 is a deficient number, since it is larger than the sum of its proper divisors (2072095).

26221793 is a wasteful number, since it uses less digits than its factorization.

26221793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943.

The product of its digits is 9072, while the sum is 32.

The square root of 26221793 is about 5120.7219217606. The cubic root of 26221793 is about 297.0896085616.

The spelling of 26221793 in words is "twenty-six million, two hundred twenty-one thousand, seven hundred ninety-three".