811483943 has 4 divisors (see below), whose sum is σ = 812600880. Its totient is φ = 810367008.

The previous prime is 811483919. The next prime is 811483957. The reversal of 811483943 is 349384118.

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 811483943 - 2⁶ = 811483879 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 811483943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811483973) 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, 557378 + ... + 558831.

It is an arithmetic number, because the mean of its divisors is an integer number (203150220).

Almost surely, 2^811483943 is an apocalyptic number.

811483943 is a deficient number, since it is larger than the sum of its proper divisors (1116937).

811483943 is a wasteful number, since it uses less digits than its factorization.

811483943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116936.

The product of its digits is 82944, while the sum is 41.

The square root of 811483943 is about 28486.5572331933. The cubic root of 811483943 is about 932.7386583279.

The spelling of 811483943 in words is "eight hundred eleven million, four hundred eighty-three thousand, nine hundred forty-three".