78936433 has 8 divisors (see below), whose sum is σ = 81881888. Its totient is φ = 76041504.

The previous prime is 78936427. The next prime is 78936461. The reversal of 78936433 is 33463987.

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

It is a cyclic number.

It is not a de Polignac number, because 78936433 - 2⁵ = 78936401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 78936433.

It is not an unprimeable number, because it can be changed into a prime (78936493) 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, 9435 + ... + 15712.

It is an arithmetic number, because the mean of its divisors is an integer number (10235236).

Almost surely, 2^78936433 is an apocalyptic number.

78936433 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

78936433 is a deficient number, since it is larger than the sum of its proper divisors (2945455).

78936433 is a wasteful number, since it uses less digits than its factorization.

78936433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25263.

The product of its digits is 326592, while the sum is 43.

The square root of 78936433 is about 8884.6177745585. The cubic root of 78936433 is about 428.9689249628.

The spelling of 78936433 in words is "seventy-eight million, nine hundred thirty-six thousand, four hundred thirty-three".