2197827 has 8 divisors (see below), whose sum is σ = 3256080. Its totient is φ = 1465200.

The previous prime is 2197799. The next prime is 2197847. The reversal of 2197827 is 7287912.

It is not a de Polignac number, because 2197827 - 2¹⁸ = 1935683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2197791 and 2197800.

It is not an unprimeable number, because it can be changed into a prime (2197847) 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, 40674 + ... + 40727.

It is an arithmetic number, because the mean of its divisors is an integer number (407010).

2^2197827 is an apocalyptic number.

2197827 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2197827 is a deficient number, since it is larger than the sum of its proper divisors (1058253).

2197827 is an equidigital number, since it uses as much as digits as its factorization.

2197827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81410 (or 81404 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2197827 is about 1482.5069982971. The cubic root of 2197827 is about 130.0163095908.

The spelling of 2197827 in words is "two million, one hundred ninety-seven thousand, eight hundred twenty-seven".