23427451 has 4 divisors (see below), whose sum is σ = 23528232. Its totient is φ = 23326672.

The previous prime is 23427449. The next prime is 23427461. The reversal of 23427451 is 15472432.

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 23427451 - 2¹ = 23427449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23427461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50041 + ... + 50506.

It is an arithmetic number, because the mean of its divisors is an integer number (5882058).

Almost surely, 2^23427451 is an apocalyptic number.

23427451 is a deficient number, since it is larger than the sum of its proper divisors (100781).

23427451 is a wasteful number, since it uses less digits than its factorization.

23427451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100780.

The product of its digits is 6720, while the sum is 28.

The square root of 23427451 is about 4840.1912152311. The cubic root of 23427451 is about 286.1376544060.

Adding to 23427451 its reverse (15472432), we get a palindrome (38899883).

The spelling of 23427451 in words is "twenty-three million, four hundred twenty-seven thousand, four hundred fifty-one".