811023427 has 2 divisors, whose sum is σ = 811023428. Its totient is φ = 811023426.

The previous prime is 811023413. The next prime is 811023431. The reversal of 811023427 is 724320118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 811023427 - 2²⁷ = 676805699 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 811023395 and 811023404.

It is not a weakly prime, because it can be changed into another prime (811023407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405511713 + 405511714.

It is an arithmetic number, because the mean of its divisors is an integer number (405511714).

Almost surely, 2^811023427 is an apocalyptic number.

811023427 is a deficient number, since it is larger than the sum of its proper divisors (1).

811023427 is an equidigital number, since it uses as much as digits as its factorization.

811023427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 811023427 is about 28478.4730454426. The cubic root of 811023427 is about 932.5621823134.

The spelling of 811023427 in words is "eight hundred eleven million, twenty-three thousand, four hundred twenty-seven".