1879897 has 2 divisors, whose sum is σ = 1879898. Its totient is φ = 1879896.

The previous prime is 1879873. The next prime is 1879901. The reversal of 1879897 is 7989781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1879641 + 256 = 1371^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 1879897 - 2¹⁵ = 1847129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1879897.

It is not a weakly prime, because it can be changed into another prime (1879807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 939948 + 939949.

It is an arithmetic number, because the mean of its divisors is an integer number (939949).

2^1879897 is an apocalyptic number.

It is an amenable number.

1879897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1879897 is an equidigital number, since it uses as much as digits as its factorization.

1879897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 49.

The square root of 1879897 is about 1371.0933593304. The cubic root of 1879897 is about 123.4178618654.

The spelling of 1879897 in words is "one million, eight hundred seventy-nine thousand, eight hundred ninety-seven".