233978 has 4 divisors (see below), whose sum is σ = 350970. Its totient is φ = 116988.

The previous prime is 233969. The next prime is 233983. The reversal of 233978 is 879332.

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., 120409 + 113569 = 347^2 + 337^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58493 + ... + 58496.

2²³³⁹⁷⁸ is an apocalyptic number.

233978 is a deficient number, since it is larger than the sum of its proper divisors (116992).

233978 is a wasteful number, since it uses less digits than its factorization.

233978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116991.

The product of its digits is 9072, while the sum is 32.

The square root of 233978 is about 483.7127246621. The cubic root of 233978 is about 61.6204702306.

The spelling of 233978 in words is "two hundred thirty-three thousand, nine hundred seventy-eight".