78433345 has 8 divisors (see below), whose sum is σ = 95446080. Its totient is φ = 61862640.

The previous prime is 78433307. The next prime is 78433351. The reversal of 78433345 is 54333487.

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

It is not a de Polignac number, because 78433345 - 2⁹ = 78432833 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 110115 + ... + 110824.

It is an arithmetic number, because the mean of its divisors is an integer number (11930760).

Almost surely, 2^78433345 is an apocalyptic number.

It is an amenable number.

78433345 is a deficient number, since it is larger than the sum of its proper divisors (17012735).

78433345 is a wasteful number, since it uses less digits than its factorization.

78433345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221015.

The product of its digits is 120960, while the sum is 37.

The square root of 78433345 is about 8856.2602152376. The cubic root of 78433345 is about 428.0556617421.

It can be divided in two parts, 784333 and 45, that added together give a triangular number (784378 = T₁₂₅₂).

The spelling of 78433345 in words is "seventy-eight million, four hundred thirty-three thousand, three hundred forty-five".