23139767 has 8 divisors (see below), whose sum is σ = 27357600. Its totient is φ = 19149984.

The previous prime is 23139761. The next prime is 23139769. The reversal of 23139767 is 76793132.

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

It is not a de Polignac number, because 23139767 - 2⁴ = 23139751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23139767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139761) 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 7 ways as a sum of consecutive naturals, for example, 56792 + ... + 57197.

It is an arithmetic number, because the mean of its divisors is an integer number (3419700).

Almost surely, 2^23139767 is an apocalyptic number.

23139767 is a deficient number, since it is larger than the sum of its proper divisors (4217833).

23139767 is a wasteful number, since it uses less digits than its factorization.

23139767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114025.

The product of its digits is 47628, while the sum is 38.

The square root of 23139767 is about 4810.3811699282. The cubic root of 23139767 is about 284.9615912126.

The spelling of 23139767 in words is "twenty-three million, one hundred thirty-nine thousand, seven hundred sixty-seven".