1672771 has 2 divisors, whose sum is σ = 1672772. Its totient is φ = 1672770.

The previous prime is 1672753. The next prime is 1672787. The reversal of 1672771 is 1772761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1672771 - 2¹¹ = 1670723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1672751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836385 + 836386.

It is an arithmetic number, because the mean of its divisors is an integer number (836386).

2^1672771 is an apocalyptic number.

1672771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672771 is an equidigital number, since it uses as much as digits as its factorization.

1672771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4116, while the sum is 31.

The square root of 1672771 is about 1293.3564860471. The cubic root of 1672771 is about 118.7076835373.

The spelling of 1672771 in words is "one million, six hundred seventy-two thousand, seven hundred seventy-one".