23778285 has 8 divisors (see below), whose sum is σ = 38045280. Its totient is φ = 12681744.

The previous prime is 23778283. The next prime is 23778301. The reversal of 23778285 is 58287732.

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

It is not a de Polignac number, because 23778285 - 2¹ = 23778283 is a prime.

It is a super-3 number, since 3×23778285³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23778281) 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, 792595 + ... + 792624.

It is an arithmetic number, because the mean of its divisors is an integer number (4755660).

Almost surely, 2^23778285 is an apocalyptic number.

It is an amenable number.

23778285 is a deficient number, since it is larger than the sum of its proper divisors (14266995).

23778285 is a wasteful number, since it uses less digits than its factorization.

23778285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585227.

The product of its digits is 188160, while the sum is 42.

The square root of 23778285 is about 4876.2982886612. The cubic root of 23778285 is about 287.5589192414.

The spelling of 23778285 in words is "twenty-three million, seven hundred seventy-eight thousand, two hundred eighty-five".