77677058 has 4 divisors (see below), whose sum is σ = 116515590. Its totient is φ = 38838528.

The previous prime is 77677057. The next prime is 77677079. The reversal of 77677058 is 85077677.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85077677 = 29 ⋅2933713.

It can be written as a sum of positive squares in only one way, i.e., 54125449 + 23551609 = 7357^2 + 4853^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77677057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19419263 + ... + 19419266.

Almost surely, 2^77677058 is an apocalyptic number.

77677058 is a deficient number, since it is larger than the sum of its proper divisors (38838532).

77677058 is a wasteful number, since it uses less digits than its factorization.

77677058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38838531.

The product of its (nonzero) digits is 576240, while the sum is 47.

The square root of 77677058 is about 8813.4589123681. The cubic root of 77677058 is about 426.6753854284.

The spelling of 77677058 in words is "seventy-seven million, six hundred seventy-seven thousand, fifty-eight".