23778745 has 8 divisors (see below), whose sum is σ = 28560960. Its totient is φ = 19005360.

The previous prime is 23778743. The next prime is 23778751. The reversal of 23778745 is 54787732.

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

It is not a de Polignac number, because 23778745 - 2¹ = 23778743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23778743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8130 + ... + 10660.

It is an arithmetic number, because the mean of its divisors is an integer number (3570120).

Almost surely, 2^23778745 is an apocalyptic number.

It is an amenable number.

23778745 is a deficient number, since it is larger than the sum of its proper divisors (4782215).

23778745 is a wasteful number, since it uses less digits than its factorization.

23778745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415.

The product of its digits is 329280, while the sum is 43.

The square root of 23778745 is about 4876.3454553590. The cubic root of 23778745 is about 287.5607735418.

The spelling of 23778745 in words is "twenty-three million, seven hundred seventy-eight thousand, seven hundred forty-five".