77349222 has 32 divisors (see below), whose sum is σ = 174460800. Its totient is φ = 25397064.

The previous prime is 77349221. The next prime is 77349227. The reversal of 77349222 is 22294377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77349221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7072 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (5451900).

Almost surely, 2^77349222 is an apocalyptic number.

77349222 is an abundant number, since it is smaller than the sum of its proper divisors (97111578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77349222 is a wasteful number, since it uses less digits than its factorization.

77349222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21457 (or 21451 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 77349222 is about 8794.8406466519. The cubic root of 77349222 is about 426.0742778634.

The spelling of 77349222 in words is "seventy-seven million, three hundred forty-nine thousand, two hundred twenty-two".