78334193 has 12 divisors (see below), whose sum is σ = 92068452. Its totient is φ = 66447360.

The previous prime is 78334177. The next prime is 78334211. The reversal of 78334193 is 39143387.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 45064369 = 5768^2 + 6713^2 .

It is not a de Polignac number, because 78334193 - 2⁴ = 78334177 is a prime.

It is a super-2 number, since 2×78334193² = 12272491585922498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78334153) 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 11 ways as a sum of consecutive naturals, for example, 3488 + ... + 12993.

It is an arithmetic number, because the mean of its divisors is an integer number (7672371).

Almost surely, 2^78334193 is an apocalyptic number.

It is an amenable number.

78334193 is a deficient number, since it is larger than the sum of its proper divisors (13734259).

78334193 is a wasteful number, since it uses less digits than its factorization.

78334193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16592 (or 16585 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 78334193 is about 8850.6605968142. The cubic root of 78334193 is about 427.8752092733.

The spelling of 78334193 in words is "seventy-eight million, three hundred thirty-four thousand, one hundred ninety-three".