77780314 has 4 divisors (see below), whose sum is σ = 116670474. Its totient is φ = 38890156.

The previous prime is 77780303. The next prime is 77780317. The reversal of 77780314 is 41308777.

77780314 is nontrivially palindromic in base 14.

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

It can be written as a sum of positive squares in only one way, i.e., 77000625 + 779689 = 8775^2 + 883^2 .

It is not an unprimeable number, because it can be changed into a prime (77780317) by changing a digit.

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 as a sum of consecutive naturals, namely, 19445077 + ... + 19445080.

Almost surely, 2^77780314 is an apocalyptic number.

77780314 is a deficient number, since it is larger than the sum of its proper divisors (38890160).

77780314 is a wasteful number, since it uses less digits than its factorization.

77780314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38890159.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 77780314 is about 8819.3148259941. The cubic root of 77780314 is about 426.8643613740.

The spelling of 77780314 in words is "seventy-seven million, seven hundred eighty thousand, three hundred fourteen".