1772047 has 2 divisors, whose sum is σ = 1772048. Its totient is φ = 1772046.

The previous prime is 1772033. The next prime is 1772077. The reversal of 1772047 is 7402771.

It is a weak prime.

It is an emirp because it is prime and its reverse (7402771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1772047 - 2¹⁹ = 1247759 is a prime.

It is an Ulam number.

1772047 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1772077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886023 + 886024.

It is an arithmetic number, because the mean of its divisors is an integer number (886024).

2^1772047 is an apocalyptic number.

1772047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1772047 is an equidigital number, since it uses as much as digits as its factorization.

1772047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 1772047 is about 1331.1825569771. The cubic root of 1772047 is about 121.0110638063.

The spelling of 1772047 in words is "one million, seven hundred seventy-two thousand, forty-seven".