77657114 has 4 divisors (see below), whose sum is σ = 116485674. Its totient is φ = 38828556.

The previous prime is 77657089. The next prime is 77657119. The reversal of 77657114 is 41175677.

It is a happy number.

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., 59552089 + 18105025 = 7717^2 + 4255^2 .

It is not an unprimeable number, because it can be changed into a prime (77657119) 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 as a sum of consecutive naturals, namely, 19414277 + ... + 19414280.

Almost surely, 2^77657114 is an apocalyptic number.

77657114 is a deficient number, since it is larger than the sum of its proper divisors (38828560).

77657114 is a wasteful number, since it uses less digits than its factorization.

77657114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38828559.

The product of its digits is 41160, while the sum is 38.

The square root of 77657114 is about 8812.3273883804. The cubic root of 77657114 is about 426.6388652404.

The spelling of 77657114 in words is "seventy-seven million, six hundred fifty-seven thousand, one hundred fourteen".