77081122 has 4 divisors (see below), whose sum is σ = 115621686. Its totient is φ = 38540560.

The previous prime is 77081113. The next prime is 77081131. The reversal of 77081122 is 22118077.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (77081113) and next prime (77081131).

It can be written as a sum of positive squares in only one way, i.e., 76895361 + 185761 = 8769^2 + 431^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19270279 + ... + 19270282.

Almost surely, 2^77081122 is an apocalyptic number.

77081122 is a deficient number, since it is larger than the sum of its proper divisors (38540564).

77081122 is a wasteful number, since it uses less digits than its factorization.

77081122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38540563.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 77081122 is about 8779.5855255245. The cubic root of 77081122 is about 425.5814362475.

Adding to 77081122 its reverse (22118077), we get a palindrome (99199199).

The spelling of 77081122 in words is "seventy-seven million, eighty-one thousand, one hundred twenty-two".