23721914 has 8 divisors (see below), whose sum is σ = 35620788. Its totient is φ = 11848320.

The previous prime is 23721911. The next prime is 23721923. The reversal of 23721914 is 41912732.

It can be written as a sum of positive squares in 2 ways, for example, as 23687689 + 34225 = 4867^2 + 185^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23721911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3767 + ... + 7850.

Almost surely, 2^23721914 is an apocalyptic number.

23721914 is a deficient number, since it is larger than the sum of its proper divisors (11898874).

23721914 is a wasteful number, since it uses less digits than its factorization.

23721914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640.

The product of its digits is 3024, while the sum is 29.

The square root of 23721914 is about 4870.5147571894. The cubic root of 23721914 is about 287.3315015175.

The spelling of 23721914 in words is "twenty-three million, seven hundred twenty-one thousand, nine hundred fourteen".