83853778 has 8 divisors (see below), whose sum is σ = 125819568. Its totient is φ = 41913924.

The previous prime is 83853767. The next prime is 83853779. The reversal of 83853778 is 87735838.

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

It is not an unprimeable number, because it can be changed into a prime (83853779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8925 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (15727446).

Almost surely, 2^83853778 is an apocalyptic number.

83853778 is a deficient number, since it is larger than the sum of its proper divisors (41965790).

83853778 is a wasteful number, since it uses less digits than its factorization.

83853778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968.

The product of its digits is 1128960, while the sum is 49.

The square root of 83853778 is about 9157.1708513055. The cubic root of 83853778 is about 437.6976465338.

The spelling of 83853778 in words is "eighty-three million, eight hundred fifty-three thousand, seven hundred seventy-eight".