811814738 has 16 divisors (see below), whose sum is σ = 1421293824. Its totient is φ = 340517760.

The previous prime is 811814737. The next prime is 811814741. The reversal of 811814738 is 837418118.

It is a junction number, because it is equal to n+sod(n) for n = 811814695 and 811814704.

It is not an unprimeable number, because it can be changed into a prime (811814737) 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, 616223 + ... + 617538.

It is an arithmetic number, because the mean of its divisors is an integer number (88830864).

Almost surely, 2^811814738 is an apocalyptic number.

811814738 is a deficient number, since it is larger than the sum of its proper divisors (609479086).

811814738 is a wasteful number, since it uses less digits than its factorization.

811814738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233817.

The product of its digits is 43008, while the sum is 41.

The square root of 811814738 is about 28492.3628012841. The cubic root of 811814738 is about 932.8653822848.

The spelling of 811814738 in words is "eight hundred eleven million, eight hundred fourteen thousand, seven hundred thirty-eight".