772011223 has 4 divisors (see below), whose sum is σ = 772205848. Its totient is φ = 771816600.

The previous prime is 772011221. The next prime is 772011241. The reversal of 772011223 is 322110277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322110277 = 383 ⋅841019.

It is a cyclic number.

It is not a de Polignac number, because 772011223 - 2¹ = 772011221 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 (772011221) 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 in 3 ways as a sum of consecutive naturals, for example, 91236 + ... + 99337.

It is an arithmetic number, because the mean of its divisors is an integer number (193051462).

Almost surely, 2^772011223 is an apocalyptic number.

772011223 is a deficient number, since it is larger than the sum of its proper divisors (194625).

772011223 is a wasteful number, since it uses less digits than its factorization.

772011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194624.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 772011223 is about 27785.0899404699. The cubic root of 772011223 is about 917.3629680491.

The spelling of 772011223 in words is "seven hundred seventy-two million, eleven thousand, two hundred twenty-three".