1672271 has 2 divisors, whose sum is σ = 1672272. Its totient is φ = 1672270.

The previous prime is 1672243. The next prime is 1672301. The reversal of 1672271 is 1722761.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672271 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1672271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836135 + 836136.

It is an arithmetic number, because the mean of its divisors is an integer number (836136).

2^1672271 is an apocalyptic number.

1672271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672271 is an equidigital number, since it uses as much as digits as its factorization.

1672271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 1672271 is about 1293.1631760919. The cubic root of 1672271 is about 118.6958549096.

The spelling of 1672271 in words is "one million, six hundred seventy-two thousand, two hundred seventy-one".