8233978 has 4 divisors (see below), whose sum is σ = 12350970. Its totient is φ = 4116988.

The previous prime is 8233961. The next prime is 8233993. The reversal of 8233978 is 8793328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7436529 + 797449 = 2727^2 + 893^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 8233978.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2058493 + ... + 2058496.

Almost surely, 2^8233978 is an apocalyptic number.

8233978 is a deficient number, since it is larger than the sum of its proper divisors (4116992).

8233978 is a wasteful number, since it uses less digits than its factorization.

8233978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116991.

The product of its digits is 72576, while the sum is 40.

The square root of 8233978 is about 2869.4908956120. The cubic root of 8233978 is about 201.9311107115.

The spelling of 8233978 in words is "eight million, two hundred thirty-three thousand, nine hundred seventy-eight".