1772794249 has 2 divisors, whose sum is σ = 1772794250. Its totient is φ = 1772794248.

The previous prime is 1772794237. The next prime is 1772794271. The reversal of 1772794249 is 9424972771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1751004025 + 21790224 = 41845^2 + 4668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1772794249 - 2¹⁵ = 1772761481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1772794196 and 1772794205.

It is not a weakly prime, because it can be changed into another prime (1772774249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886397124 + 886397125.

It is an arithmetic number, because the mean of its divisors is an integer number (886397125).

Almost surely, 2^1772794249 is an apocalyptic number.

It is an amenable number.

1772794249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1772794249 is an equidigital number, since it uses as much as digits as its factorization.

1772794249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 52.

The square root of 1772794249 is about 42104.5632800056. The cubic root of 1772794249 is about 1210.2807100928.

The spelling of 1772794249 in words is "one billion, seven hundred seventy-two million, seven hundred ninety-four thousand, two hundred forty-nine".