23487879 has 4 divisors (see below), whose sum is σ = 31317176. Its totient is φ = 15658584.

The previous prime is 23487869. The next prime is 23487923. The reversal of 23487879 is 97878432.

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

It is not a de Polignac number, because 23487879 - 2¹⁵ = 23455111 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 (23487809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3914644 + ... + 3914649.

It is an arithmetic number, because the mean of its divisors is an integer number (7829294).

Almost surely, 2^23487879 is an apocalyptic number.

23487879 is a deficient number, since it is larger than the sum of its proper divisors (7829297).

23487879 is an equidigital number, since it uses as much as digits as its factorization.

23487879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829296.

The product of its digits is 677376, while the sum is 48.

The square root of 23487879 is about 4846.4295104747. The cubic root of 23487879 is about 286.3834612171.

The spelling of 23487879 in words is "twenty-three million, four hundred eighty-seven thousand, eight hundred seventy-nine".