77422266 has 12 divisors (see below), whose sum is σ = 167748282. Its totient is φ = 25807416.

The previous prime is 77422259. The next prime is 77422271. The reversal of 77422266 is 66222477.

It can be written as a sum of positive squares in only one way, i.e., 70812225 + 6610041 = 8415^2 + 2571^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77422266.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2150601 + ... + 2150636.

Almost surely, 2^77422266 is an apocalyptic number.

77422266 is an abundant number, since it is smaller than the sum of its proper divisors (90326016).

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

77422266 is a wasteful number, since it uses less digits than its factorization.

77422266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301245 (or 4301242 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 77422266 is about 8798.9923286704. The cubic root of 77422266 is about 426.2083553940.

The spelling of 77422266 in words is "seventy-seven million, four hundred twenty-two thousand, two hundred sixty-six".