26621023 has 8 divisors (see below), whose sum is σ = 31275216. Its totient is φ = 22339200.

The previous prime is 26621009. The next prime is 26621029. The reversal of 26621023 is 32012662.

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 26621023 - 2⁹ = 26620511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26620985 and 26621003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26621029) 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, 92938 + ... + 93223.

It is an arithmetic number, because the mean of its divisors is an integer number (3909402).

Almost surely, 2^26621023 is an apocalyptic number.

26621023 is a deficient number, since it is larger than the sum of its proper divisors (4654193).

26621023 is a wasteful number, since it uses less digits than its factorization.

26621023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186185.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 26621023 is about 5159.5564731864. The cubic root of 26621023 is about 298.5897626376.

Adding to 26621023 its reverse (32012662), we get a palindrome (58633685).

The spelling of 26621023 in words is "twenty-six million, six hundred twenty-one thousand, twenty-three".