23778573 has 48 divisors (see below), whose sum is σ = 41521536. Its totient is φ = 11975040.

The previous prime is 23778571. The next prime is 23778577. The reversal of 23778573 is 37587732.

It is not a de Polignac number, because 23778573 - 2¹ = 23778571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23778571) 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 47 ways as a sum of consecutive naturals, for example, 43683 + ... + 44223.

It is an arithmetic number, because the mean of its divisors is an integer number (865032).

Almost surely, 2^23778573 is an apocalyptic number.

23778573 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23778573 is a deficient number, since it is larger than the sum of its proper divisors (17742963).

23778573 is a wasteful number, since it uses less digits than its factorization.

23778573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 587 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The square root of 23778573 is about 4876.3278191688. The cubic root of 23778573 is about 287.5600801975.

The spelling of 23778573 in words is "twenty-three million, seven hundred seventy-eight thousand, five hundred seventy-three".