1772971 has 2 divisors, whose sum is σ = 1772972. Its totient is φ = 1772970.

The previous prime is 1772959. The next prime is 1772987. The reversal of 1772971 is 1792771.

It is a weak prime.

It is an emirp because it is prime and its reverse (1792771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1772971 - 2¹³ = 1764779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1773971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886485 + 886486.

It is an arithmetic number, because the mean of its divisors is an integer number (886486).

2^1772971 is an apocalyptic number.

1772971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1772971 is an equidigital number, since it uses as much as digits as its factorization.

1772971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6174, while the sum is 34.

The square root of 1772971 is about 1331.5295715830. The cubic root of 1772971 is about 121.0320931195.

The spelling of 1772971 in words is "one million, seven hundred seventy-two thousand, nine hundred seventy-one".