77323423 has 2 divisors, whose sum is σ = 77323424. Its totient is φ = 77323422.

The previous prime is 77323409. The next prime is 77323459. The reversal of 77323423 is 32432377.

It is a weak prime.

It is an emirp because it is prime and its reverse (32432377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77323423 - 2¹⁷ = 77192351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77323403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38661711 + 38661712.

It is an arithmetic number, because the mean of its divisors is an integer number (38661712).

Almost surely, 2^77323423 is an apocalyptic number.

77323423 is a deficient number, since it is larger than the sum of its proper divisors (1).

77323423 is an equidigital number, since it uses as much as digits as its factorization.

77323423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 31.

The square root of 77323423 is about 8793.3738121383. The cubic root of 77323423 is about 426.0269017668.

The spelling of 77323423 in words is "seventy-seven million, three hundred twenty-three thousand, four hundred twenty-three".