80856383 has 4 divisors (see below), whose sum is σ = 82736808. Its totient is φ = 78975960.

The previous prime is 80856367. The next prime is 80856409. The reversal of 80856383 is 38365808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80856383 - 2⁴ = 80856367 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 80856383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80856353) 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, 940148 + ... + 940233.

It is an arithmetic number, because the mean of its divisors is an integer number (20684202).

Almost surely, 2^80856383 is an apocalyptic number.

80856383 is a deficient number, since it is larger than the sum of its proper divisors (1880425).

80856383 is a wasteful number, since it uses less digits than its factorization.

80856383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880424.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 80856383 is about 8992.0177379718. The cubic root of 80856383 is about 432.4190018386.

The spelling of 80856383 in words is "eighty million, eight hundred fifty-six thousand, three hundred eighty-three".