23449783 has 12 divisors (see below), whose sum is σ = 28883952. Its totient is φ = 18916800.

The previous prime is 23449771. The next prime is 23449787. The reversal of 23449783 is 38794432.

It is a de Polignac number, because none of the positive numbers 2^k-23449783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23449787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13243 + ... + 14908.

It is an arithmetic number, because the mean of its divisors is an integer number (2406996).

Almost surely, 2^23449783 is an apocalyptic number.

23449783 is a deficient number, since it is larger than the sum of its proper divisors (5434169).

23449783 is a wasteful number, since it uses less digits than its factorization.

23449783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28182 (or 28175 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 23449783 is about 4842.4975993799. The cubic root of 23449783 is about 286.2285448854.

The spelling of 23449783 in words is "twenty-three million, four hundred forty-nine thousand, seven hundred eighty-three".