23773878 has 32 divisors (see below), whose sum is σ = 53627520. Its totient is φ = 7805160.

The previous prime is 23773877. The next prime is 23773889. The reversal of 23773878 is 87837732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23773877) 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 15 ways as a sum of consecutive naturals, for example, 333 + ... + 6903.

It is an arithmetic number, because the mean of its divisors is an integer number (1675860).

Almost surely, 2^23773878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23773878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26813760).

23773878 is an abundant number, since it is smaller than the sum of its proper divisors (29853642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23773878 is a wasteful number, since it uses less digits than its factorization.

23773878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649 (or 6643 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 23773878 is about 4875.8463880643. The cubic root of 23773878 is about 287.5411530252.

The spelling of 23773878 in words is "twenty-three million, seven hundred seventy-three thousand, eight hundred seventy-eight".