811706942 has 8 divisors (see below), whose sum is σ = 1281642600. Its totient is φ = 384492744.

The previous prime is 811706941. The next prime is 811706947. The reversal of 811706942 is 249607118.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 21360709 = 811706942 / (8 + 1 + 1 + 7 + 0 + 6 + 9 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 811706896 and 811706905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811706941) 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, 10680317 + ... + 10680392.

It is an arithmetic number, because the mean of its divisors is an integer number (160205325).

Almost surely, 2^811706942 is an apocalyptic number.

811706942 is a deficient number, since it is larger than the sum of its proper divisors (469935658).

811706942 is a wasteful number, since it uses less digits than its factorization.

811706942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21360730.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 811706942 is about 28490.4710736765. The cubic root of 811706942 is about 932.8240905946.

The spelling of 811706942 in words is "eight hundred eleven million, seven hundred six thousand, nine hundred forty-two".