77466223 has 4 divisors (see below), whose sum is σ = 78336720. Its totient is φ = 76595728.

The previous prime is 77466187. The next prime is 77466227. The reversal of 77466223 is 32266477.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77466223 - 2¹⁷ = 77335151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77466227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435115 + ... + 435292.

It is an arithmetic number, because the mean of its divisors is an integer number (19584180).

Almost surely, 2^77466223 is an apocalyptic number.

77466223 is a deficient number, since it is larger than the sum of its proper divisors (870497).

77466223 is an equidigital number, since it uses as much as digits as its factorization.

77466223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870496.

The product of its digits is 84672, while the sum is 37.

The square root of 77466223 is about 8801.4898170707. The cubic root of 77466223 is about 426.2890009979.

The spelling of 77466223 in words is "seventy-seven million, four hundred sixty-six thousand, two hundred twenty-three".