78339233 has 8 divisors (see below), whose sum is σ = 91714560. Its totient is φ = 65509920.

The previous prime is 78339221. The next prime is 78339241. The reversal of 78339233 is 33293387.

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

It is not a de Polignac number, because 78339233 - 2⁶ = 78339169 is a prime.

It is a super-2 number, since 2×78339233² = 12274070854056578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78329233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136193 + ... + 136766.

It is an arithmetic number, because the mean of its divisors is an integer number (11464320).

Almost surely, 2^78339233 is an apocalyptic number.

It is an amenable number.

78339233 is a deficient number, since it is larger than the sum of its proper divisors (13375327).

78339233 is a wasteful number, since it uses less digits than its factorization.

78339233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273007.

The product of its digits is 81648, while the sum is 38.

The square root of 78339233 is about 8850.9453167444. The cubic root of 78339233 is about 427.8843855335.

The spelling of 78339233 in words is "seventy-eight million, three hundred thirty-nine thousand, two hundred thirty-three".