30773223 has 32 divisors (see below), whose sum is σ = 49810880. Its totient is φ = 18662400.

The previous prime is 30773191. The next prime is 30773269. The reversal of 30773223 is 32237703.

It is a happy number.

It is not a de Polignac number, because 30773223 - 2⁵ = 30773191 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30773273) 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 31 ways as a sum of consecutive naturals, for example, 25023 + ... + 26223.

It is an arithmetic number, because the mean of its divisors is an integer number (1556590).

Almost surely, 2^30773223 is an apocalyptic number.

30773223 is a deficient number, since it is larger than the sum of its proper divisors (19037657).

30773223 is a wasteful number, since it uses less digits than its factorization.

30773223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 27.

The square root of 30773223 is about 5547.3618053990. The cubic root of 30773223 is about 313.3701758650.

The spelling of 30773223 in words is "thirty million, seven hundred seventy-three thousand, two hundred twenty-three".