80817383 has 4 divisors (see below), whose sum is σ = 81955728. Its totient is φ = 79679040.

The previous prime is 80817379. The next prime is 80817389. The reversal of 80817383 is 38371808.

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

It is not a de Polignac number, because 80817383 - 2² = 80817379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80817389) 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, 569066 + ... + 569207.

It is an arithmetic number, because the mean of its divisors is an integer number (20488932).

Almost surely, 2^80817383 is an apocalyptic number.

80817383 is a deficient number, since it is larger than the sum of its proper divisors (1138345).

80817383 is a wasteful number, since it uses less digits than its factorization.

80817383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138344.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 80817383 is about 8989.8488863829. The cubic root of 80817383 is about 432.3494668079.

The spelling of 80817383 in words is "eighty million, eight hundred seventeen thousand, three hundred eighty-three".