77373223 has 2 divisors, whose sum is σ = 77373224. Its totient is φ = 77373222.

The previous prime is 77373221. The next prime is 77373259. The reversal of 77373223 is 32237377.

It is a weak prime.

It is an emirp because it is prime and its reverse (32237377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77373223 - 2¹ = 77373221 is a prime.

Together with 77373221, 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 (77373221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38686611 + 38686612.

It is an arithmetic number, because the mean of its divisors is an integer number (38686612).

Almost surely, 2^77373223 is an apocalyptic number.

77373223 is a deficient number, since it is larger than the sum of its proper divisors (1).

77373223 is an equidigital number, since it uses as much as digits as its factorization.

77373223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 34.

The square root of 77373223 is about 8796.2050339905. The cubic root of 77373223 is about 426.1183427376.

The spelling of 77373223 in words is "seventy-seven million, three hundred seventy-three thousand, two hundred twenty-three".