77769383 has 2 divisors, whose sum is σ = 77769384. Its totient is φ = 77769382.

The previous prime is 77769343. The next prime is 77769397. The reversal of 77769383 is 38396777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77769383 - 2⁸ = 77769127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77769313) 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, 38884691 + 38884692.

It is an arithmetic number, because the mean of its divisors is an integer number (38884692).

Almost surely, 2^77769383 is an apocalyptic number.

77769383 is a deficient number, since it is larger than the sum of its proper divisors (1).

77769383 is an equidigital number, since it uses as much as digits as its factorization.

77769383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The square root of 77769383 is about 8818.6950848751. The cubic root of 77769383 is about 426.8443637135.

The spelling of 77769383 in words is "seventy-seven million, seven hundred sixty-nine thousand, three hundred eighty-three".