26077221 has 20 divisors (see below), whose sum is σ = 39866112. Its totient is φ = 16978248.

The previous prime is 26077211. The next prime is 26077223. The reversal of 26077221 is 12277062.

It is not a de Polignac number, because 26077221 - 2¹⁵ = 26044453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26077223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 261 + ... + 7226.

Almost surely, 2^26077221 is an apocalyptic number.

It is an amenable number.

26077221 is a deficient number, since it is larger than the sum of its proper divisors (13788891).

26077221 is an equidigital number, since it uses as much as digits as its factorization.

26077221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7542 (or 7533 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 26077221 is about 5106.5860415742. The cubic root of 26077221 is about 296.5426078660.

The spelling of 26077221 in words is "twenty-six million, seventy-seven thousand, two hundred twenty-one".