772299427 has 2 divisors, whose sum is σ = 772299428. Its totient is φ = 772299426.

The previous prime is 772299421. The next prime is 772299431. The reversal of 772299427 is 724992277.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 772299427 - 2¹⁹ = 771775139 is a prime.

It is not a weakly prime, because it can be changed into another prime (772299421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386149713 + 386149714.

It is an arithmetic number, because the mean of its divisors is an integer number (386149714).

Almost surely, 2^772299427 is an apocalyptic number.

772299427 is a deficient number, since it is larger than the sum of its proper divisors (1).

772299427 is an equidigital number, since it uses as much as digits as its factorization.

772299427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 772299427 is about 27790.2757632953. The cubic root of 772299427 is about 917.4771092151.

The spelling of 772299427 in words is "seven hundred seventy-two million, two hundred ninety-nine thousand, four hundred twenty-seven".