77355349 has 2 divisors, whose sum is σ = 77355350. Its totient is φ = 77355348.

The previous prime is 77355277. The next prime is 77355367. The reversal of 77355349 is 94355377.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 12552849 = 8050^2 + 3543^2 .

It is an emirp because it is prime and its reverse (94355377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77355349 - 2⁷ = 77355221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77355379) 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, 38677674 + 38677675.

It is an arithmetic number, because the mean of its divisors is an integer number (38677675).

Almost surely, 2^77355349 is an apocalyptic number.

It is an amenable number.

77355349 is a deficient number, since it is larger than the sum of its proper divisors (1).

77355349 is an equidigital number, since it uses as much as digits as its factorization.

77355349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 43.

The square root of 77355349 is about 8795.1889689762. The cubic root of 77355349 is about 426.0855276562.

The spelling of 77355349 in words is "seventy-seven million, three hundred fifty-five thousand, three hundred forty-nine".