26023989 has 8 divisors (see below), whose sum is σ = 35174272. Its totient is φ = 17111520.

The previous prime is 26023981. The next prime is 26024021. The reversal of 26023989 is 98932062.

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

It is not a de Polignac number, because 26023989 - 2³ = 26023981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26023981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59197 + ... + 59634.

It is an arithmetic number, because the mean of its divisors is an integer number (4396784).

Almost surely, 2^26023989 is an apocalyptic number.

It is an amenable number.

26023989 is a deficient number, since it is larger than the sum of its proper divisors (9150283).

26023989 is a wasteful number, since it uses less digits than its factorization.

26023989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118907.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 26023989 is about 5101.3712862328. The cubic root of 26023989 is about 296.3406907799.

The spelling of 26023989 in words is "twenty-six million, twenty-three thousand, nine hundred eighty-nine".