78494433 has 8 divisors (see below), whose sum is σ = 105585888. Its totient is φ = 51866304.

The previous prime is 78494419. The next prime is 78494441. The reversal of 78494433 is 33449487.

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

It is not a de Polignac number, because 78494433 - 2⁵ = 78494401 is a prime.

It is a super-2 number, since 2×78494433² = 12322752023982978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78494413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115435 + ... + 116112.

It is an arithmetic number, because the mean of its divisors is an integer number (13198236).

Almost surely, 2^78494433 is an apocalyptic number.

It is an amenable number.

78494433 is a deficient number, since it is larger than the sum of its proper divisors (27091455).

78494433 is a wasteful number, since it uses less digits than its factorization.

78494433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231663.

The product of its digits is 290304, while the sum is 42.

The square root of 78494433 is about 8859.7084037794. The cubic root of 78494433 is about 428.1667636314.

The spelling of 78494433 in words is "seventy-eight million, four hundred ninety-four thousand, four hundred thirty-three".