78785433 has 16 divisors (see below), whose sum is σ = 117047040. Its totient is φ = 52376112.

The previous prime is 78785407. The next prime is 78785453. The reversal of 78785433 is 33458787.

It is not a de Polignac number, because 78785433 - 2¹² = 78781337 is a prime.

It is a super-3 number, since 3×78785433³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78785453) 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 15 ways as a sum of consecutive naturals, for example, 6160 + ... + 13982.

It is an arithmetic number, because the mean of its divisors is an integer number (7315440).

Almost surely, 2^78785433 is an apocalyptic number.

It is an amenable number.

78785433 is a deficient number, since it is larger than the sum of its proper divisors (38261607).

78785433 is a wasteful number, since it uses less digits than its factorization.

78785433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205 (or 8199 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 78785433 is about 8876.1158735113. The cubic root of 78785433 is about 428.6952209536.

The spelling of 78785433 in words is "seventy-eight million, seven hundred eighty-five thousand, four hundred thirty-three".