77228303 has 2 divisors, whose sum is σ = 77228304. Its totient is φ = 77228302.

The previous prime is 77228251. The next prime is 77228311. The reversal of 77228303 is 30382277.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77228303 - 2¹² = 77224207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77228303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77228323) 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, 38614151 + 38614152.

It is an arithmetic number, because the mean of its divisors is an integer number (38614152).

Almost surely, 2^77228303 is an apocalyptic number.

77228303 is a deficient number, since it is larger than the sum of its proper divisors (1).

77228303 is an equidigital number, since it uses as much as digits as its factorization.

77228303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 77228303 is about 8787.9635297377. The cubic root of 77228303 is about 425.8521366675.

The spelling of 77228303 in words is "seventy-seven million, two hundred twenty-eight thousand, three hundred three".