1872971 has 2 divisors, whose sum is σ = 1872972. Its totient is φ = 1872970.

The previous prime is 1872953. The next prime is 1873013. The reversal of 1872971 is 1792781.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1872971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1872911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936485 + 936486.

It is an arithmetic number, because the mean of its divisors is an integer number (936486).

2^1872971 is an apocalyptic number.

1872971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872971 is an equidigital number, since it uses as much as digits as its factorization.

1872971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 35.

The square root of 1872971 is about 1368.5653071739. The cubic root of 1872971 is about 123.2661081577.

The spelling of 1872971 in words is "one million, eight hundred seventy-two thousand, nine hundred seventy-one".