23977716 has 48 divisors (see below), whose sum is σ = 64458240. Its totient is φ = 6795360.

The previous prime is 23977699. The next prime is 23977729. The reversal of 23977716 is 61777932.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9915 + ... + 12093.

It is an arithmetic number, because the mean of its divisors is an integer number (1342880).

Almost surely, 2^23977716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23977716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32229120).

23977716 is an abundant number, since it is smaller than the sum of its proper divisors (40480524).

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

23977716 is a wasteful number, since it uses less digits than its factorization.

23977716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324 (or 2322 counting only the distinct ones).

The product of its digits is 111132, while the sum is 42.

The square root of 23977716 is about 4896.7046061612. The cubic root of 23977716 is about 288.3606111681.

The spelling of 23977716 in words is "twenty-three million, nine hundred seventy-seven thousand, seven hundred sixteen".