77371423 has 2 divisors, whose sum is σ = 77371424. Its totient is φ = 77371422.

The previous prime is 77371421. The next prime is 77371451. The reversal of 77371423 is 32417377.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77371423 - 2¹ = 77371421 is a prime.

Together with 77371421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77371421) 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, 38685711 + 38685712.

It is an arithmetic number, because the mean of its divisors is an integer number (38685712).

Almost surely, 2^77371423 is an apocalyptic number.

77371423 is a deficient number, since it is larger than the sum of its proper divisors (1).

77371423 is an equidigital number, since it uses as much as digits as its factorization.

77371423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 34.

The square root of 77371423 is about 8796.1027165444. The cubic root of 77371423 is about 426.1150383258.

The spelling of 77371423 in words is "seventy-seven million, three hundred seventy-one thousand, four hundred twenty-three".