77406383 has 2 divisors, whose sum is σ = 77406384. Its totient is φ = 77406382.

The previous prime is 77406367. The next prime is 77406391. The reversal of 77406383 is 38360477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77406383 - 2⁴ = 77406367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77406313) 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, 38703191 + 38703192.

It is an arithmetic number, because the mean of its divisors is an integer number (38703192).

Almost surely, 2^77406383 is an apocalyptic number.

77406383 is a deficient number, since it is larger than the sum of its proper divisors (1).

77406383 is an equidigital number, since it uses as much as digits as its factorization.

77406383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 77406383 is about 8798.0897358461. The cubic root of 77406383 is about 426.1792081791.

The spelling of 77406383 in words is "seventy-seven million, four hundred six thousand, three hundred eighty-three".