23202047 has 4 divisors (see below), whose sum is σ = 25311336. Its totient is φ = 21092760.

The previous prime is 23202037. The next prime is 23202061. The reversal of 23202047 is 74020232.

It is a happy number.

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-23202047 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 (23202037) 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, 1054628 + ... + 1054649.

It is an arithmetic number, because the mean of its divisors is an integer number (6327834).

Almost surely, 2^23202047 is an apocalyptic number.

23202047 is a deficient number, since it is larger than the sum of its proper divisors (2109289).

23202047 is a wasteful number, since it uses less digits than its factorization.

23202047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109288.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 23202047 is about 4816.8503194515. The cubic root of 23202047 is about 285.2170174298.

Adding to 23202047 its reverse (74020232), we get a palindrome (97222279).

The spelling of 23202047 in words is "twenty-three million, two hundred two thousand, forty-seven".