77469347 has 2 divisors, whose sum is σ = 77469348. Its totient is φ = 77469346.

The previous prime is 77469319. The next prime is 77469349. The reversal of 77469347 is 74396477.

It is a strong prime.

It is an emirp because it is prime and its reverse (74396477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77469347 - 2¹⁰ = 77468323 is a prime.

Together with 77469349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77469349) 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, 38734673 + 38734674.

It is an arithmetic number, because the mean of its divisors is an integer number (38734674).

Almost surely, 2^77469347 is an apocalyptic number.

77469347 is a deficient number, since it is larger than the sum of its proper divisors (1).

77469347 is an equidigital number, since it uses as much as digits as its factorization.

77469347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 47.

The square root of 77469347 is about 8801.6672852364. The cubic root of 77469347 is about 426.2947312757.

The spelling of 77469347 in words is "seventy-seven million, four hundred sixty-nine thousand, three hundred forty-seven".