811401 has 8 divisors (see below), whose sum is σ = 1086624. Its totient is φ = 538560.

The previous prime is 811387. The next prime is 811411. The reversal of 811401 is 104118.

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

It is not a de Polignac number, because 811401 - 2⁶ = 811337 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 811401.

It is not an unprimeable number, because it can be changed into a prime (811411) 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, 481 + ... + 1361.

It is an arithmetic number, because the mean of its divisors is an integer number (135828).

2⁸¹¹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

811401 is a deficient number, since it is larger than the sum of its proper divisors (275223).

811401 is a wasteful number, since it uses less digits than its factorization.

811401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 811401 is about 900.7779970670. Note that the first 3 decimals coincide. The cubic root of 811401 is about 93.2706878369.

Adding to 811401 its reverse (104118), we get a palindrome (915519).

The spelling of 811401 in words is "eight hundred eleven thousand, four hundred one".