23486739 has 4 divisors (see below), whose sum is σ = 31315656. Its totient is φ = 15657824.

The previous prime is 23486737. The next prime is 23486761. The reversal of 23486739 is 93768432.

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

It is a cyclic number.

It is not a de Polignac number, because 23486739 - 2¹ = 23486737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23486739.

It is not an unprimeable number, because it can be changed into a prime (23486731) 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, 3914454 + ... + 3914459.

It is an arithmetic number, because the mean of its divisors is an integer number (7828914).

Almost surely, 2^23486739 is an apocalyptic number.

23486739 is a deficient number, since it is larger than the sum of its proper divisors (7828917).

23486739 is an equidigital number, since it uses as much as digits as its factorization.

23486739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828916.

The product of its digits is 217728, while the sum is 42.

The square root of 23486739 is about 4846.3118966901. The cubic root of 23486739 is about 286.3788278709.

The spelling of 23486739 in words is "twenty-three million, four hundred eighty-six thousand, seven hundred thirty-nine".