78942043 has 8 divisors (see below), whose sum is σ = 79693200. Its totient is φ = 78194688.

The previous prime is 78942011. The next prime is 78942091. The reversal of 78942043 is 34024987.

It is a happy number.

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 78942043 - 2⁵ = 78942011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78941993 and 78942011.

It is not an unprimeable number, because it can be changed into a prime (78949043) 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, 55323 + ... + 56731.

It is an arithmetic number, because the mean of its divisors is an integer number (9961650).

Almost surely, 2^78942043 is an apocalyptic number.

78942043 is a deficient number, since it is larger than the sum of its proper divisors (751157).

78942043 is a wasteful number, since it uses less digits than its factorization.

78942043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 78942043 is about 8884.9334831500. The cubic root of 78942043 is about 428.9790869736.

The spelling of 78942043 in words is "seventy-eight million, nine hundred forty-two thousand, forty-three".