826881 has 8 divisors (see below), whose sum is σ = 1202784. Its totient is φ = 501120.

The previous prime is 826879. The next prime is 826883. The reversal of 826881 is 188628.

It is an interprime number because it is at equal distance from previous prime (826879) and next prime (826883).

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

It is not a de Polignac number, because 826881 - 2¹ = 826879 is a prime.

It is a super-2 number, since 2×826881² = 1367464376322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 25057 = 826881 / (8 + 2 + 6 + 8 + 8 + 1).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 826881.

It is not an unprimeable number, because it can be changed into a prime (826883) 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, 12496 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (150348).

2⁸²⁶⁸⁸¹ is an apocalyptic number.

It is an amenable number.

826881 is a deficient number, since it is larger than the sum of its proper divisors (375903).

826881 is a wasteful number, since it uses less digits than its factorization.

826881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25071.

The product of its digits is 6144, while the sum is 33.

The square root of 826881 is about 909.3299731121. The cubic root of 826881 is about 93.8600982077.

The spelling of 826881 in words is "eight hundred twenty-six thousand, eight hundred eighty-one".