78083854 has 16 divisors (see below), whose sum is σ = 121259520. Its totient is φ = 37671480.

The previous prime is 78083851. The next prime is 78083861. The reversal of 78083854 is 45838087.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78083854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78083851) 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, 21837 + ... + 25159.

It is an arithmetic number, because the mean of its divisors is an integer number (7578720).

Almost surely, 2^78083854 is an apocalyptic number.

78083854 is a deficient number, since it is larger than the sum of its proper divisors (43175666).

78083854 is a wasteful number, since it uses less digits than its factorization.

78083854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 78083854 is about 8836.5068890371. The cubic root of 78083854 is about 427.4189242416.

The spelling of 78083854 in words is "seventy-eight million, eighty-three thousand, eight hundred fifty-four".