1171828 has 12 divisors (see below), whose sum is σ = 2343712. Its totient is φ = 502200.

The previous prime is 1171823. The next prime is 1171837. The reversal of 1171828 is 8281711.

1171828 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 41851 = 1171828 / (1 + 1 + 7 + 1 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1171796 and 1171805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171823) 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, 20898 + ... + 20953.

2^1171828 is an apocalyptic number.

It is an amenable number.

1171828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1171828 is a wasteful number, since it uses less digits than its factorization.

1171828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41862 (or 41860 counting only the distinct ones).

The product of its digits is 896, while the sum is 28.

The square root of 1171828 is about 1082.5100461428. The cubic root of 1171828 is about 105.4276736742.

The spelling of 1171828 in words is "one million, one hundred seventy-one thousand, eight hundred twenty-eight".