77822230 has 16 divisors (see below), whose sum is σ = 140230944. Its totient is φ = 31095360.

The previous prime is 77822221. The next prime is 77822263. The reversal of 77822230 is 3222877.

It is a junction number, because it is equal to n+sod(n) for n = 77822192 and 77822201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6970 + ... + 14290.

It is an arithmetic number, because the mean of its divisors is an integer number (8764434).

Almost surely, 2^77822230 is an apocalyptic number.

77822230 is a deficient number, since it is larger than the sum of its proper divisors (62408714).

77822230 is a wasteful number, since it uses less digits than its factorization.

77822230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 77822230 is about 8821.6908810046. The cubic root of 77822230 is about 426.9410270173.

The spelling of 77822230 in words is "seventy-seven million, eight hundred twenty-two thousand, two hundred thirty".