23283989 has 8 divisors (see below), whose sum is σ = 24129240. Its totient is φ = 22450176.

The previous prime is 23283983. The next prime is 23284003. The reversal of 23283989 is 98938232.

It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 22944100 = 583^2 + 4790^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23283989 - 2⁴ = 23283973 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 (23283983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397 + ... + 6965.

It is an arithmetic number, because the mean of its divisors is an integer number (3016155).

Almost surely, 2^23283989 is an apocalyptic number.

It is an amenable number.

23283989 is a deficient number, since it is larger than the sum of its proper divisors (845251).

23283989 is a wasteful number, since it uses less digits than its factorization.

23283989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719.

The product of its digits is 186624, while the sum is 44.

The square root of 23283989 is about 4825.3485884442. The cubic root of 23283989 is about 285.5523871712.

Adding to 23283989 its reverse (98938232), we get a palindrome (122222221).

The spelling of 23283989 in words is "twenty-three million, two hundred eighty-three thousand, nine hundred eighty-nine".