23396789 has 4 divisors (see below), whose sum is σ = 25196556. Its totient is φ = 21597024.

The previous prime is 23396767. The next prime is 23396801. The reversal of 23396789 is 98769332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9394225 + 14002564 = 3065^2 + 3742^2 .

It is a cyclic number.

It is not a de Polignac number, because 23396789 - 2²⁰ = 22348213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23396729) 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 3 ways as a sum of consecutive naturals, for example, 899864 + ... + 899889.

It is an arithmetic number, because the mean of its divisors is an integer number (6299139).

Almost surely, 2^23396789 is an apocalyptic number.

It is an amenable number.

23396789 is a deficient number, since it is larger than the sum of its proper divisors (1799767).

23396789 is a wasteful number, since it uses less digits than its factorization.

23396789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799766.

The product of its digits is 489888, while the sum is 47.

The square root of 23396789 is about 4837.0227413152. The cubic root of 23396789 is about 286.0127669656.

The spelling of 23396789 in words is "twenty-three million, three hundred ninety-six thousand, seven hundred eighty-nine".