78798933 has 8 divisors (see below), whose sum is σ = 116739200. Its totient is φ = 52532604.

The previous prime is 78798911. The next prime is 78798949. The reversal of 78798933 is 33989787.

It is not a de Polignac number, because 78798933 - 2¹⁷ = 78667861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78798933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78793933) by changing a digit.

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, 1459213 + ... + 1459266.

It is an arithmetic number, because the mean of its divisors is an integer number (14592400).

Almost surely, 2^78798933 is an apocalyptic number.

It is an amenable number.

78798933 is a deficient number, since it is larger than the sum of its proper divisors (37940267).

78798933 is a wasteful number, since it uses less digits than its factorization.

78798933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918488 (or 2918482 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 78798933 is about 8876.8763087023. The cubic root of 78798933 is about 428.7197054077.

The spelling of 78798933 in words is "seventy-eight million, seven hundred ninety-eight thousand, nine hundred thirty-three".