23229487 has 4 divisors (see below), whose sum is σ = 23455120. Its totient is φ = 23003856.

The previous prime is 23229407. The next prime is 23229499. The reversal of 23229487 is 78492232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23229487 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 (23229407) 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, 112662 + ... + 112867.

It is an arithmetic number, because the mean of its divisors is an integer number (5863780).

Almost surely, 2^23229487 is an apocalyptic number.

23229487 is a deficient number, since it is larger than the sum of its proper divisors (225633).

23229487 is a wasteful number, since it uses less digits than its factorization.

23229487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225632.

The product of its digits is 48384, while the sum is 37.

The square root of 23229487 is about 4819.6978121040. The cubic root of 23229487 is about 285.3294108420.

It can be divided in two parts, 23229 and 487, that added together give a square (23716 = 154²).

The spelling of 23229487 in words is "twenty-three million, two hundred twenty-nine thousand, four hundred eighty-seven".