8121827 has 8 divisors (see below), whose sum is σ = 9602400. Its totient is φ = 6721344.

The previous prime is 8121823. The next prime is 8121847. The reversal of 8121827 is 7281218.

8121827 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8121827 - 2² = 8121823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an Ulam number.

It is a Duffinian number.

8121827 is a modest number, since divided by 1827 gives 812 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8121827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19802 + ... + 20207.

It is an arithmetic number, because the mean of its divisors is an integer number (1200300).

Almost surely, 2^8121827 is an apocalyptic number.

8121827 is a deficient number, since it is larger than the sum of its proper divisors (1480573).

8121827 is a wasteful number, since it uses less digits than its factorization.

8121827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40045.

The product of its digits is 1792, while the sum is 29.

The square root of 8121827 is about 2849.8819273787. The cubic root of 8121827 is about 201.0101147522.

It can be divided in two parts, 812 and 1827, that multiplied together give a square (1483524 = 1218²).

The spelling of 8121827 in words is "eight million, one hundred twenty-one thousand, eight hundred twenty-seven".