77222066 has 8 divisors (see below), whose sum is σ = 118527024. Its totient is φ = 37713060.

The previous prime is 77222059. The next prime is 77222077. The reversal of 77222066 is 66022277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448880 + ... + 449051.

It is an arithmetic number, because the mean of its divisors is an integer number (14815878).

Almost surely, 2^77222066 is an apocalyptic number.

77222066 is a deficient number, since it is larger than the sum of its proper divisors (41304958).

77222066 is a wasteful number, since it uses less digits than its factorization.

77222066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897976.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 77222066 is about 8787.6086622016. The cubic root of 77222066 is about 425.8406723417.

The spelling of 77222066 in words is "seventy-seven million, two hundred twenty-two thousand, sixty-six".