77676999 has 4 divisors (see below), whose sum is σ = 103569336. Its totient is φ = 51784664.

The previous prime is 77676983. The next prime is 77677013. The reversal of 77676999 is 99967677.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99967677 = 3 ⋅33322559.

It is a cyclic number.

It is not a de Polignac number, because 77676999 - 2⁴ = 77676983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77676299) 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 in 3 ways as a sum of consecutive naturals, for example, 12946164 + ... + 12946169.

It is an arithmetic number, because the mean of its divisors is an integer number (25892334).

Almost surely, 2^77676999 is an apocalyptic number.

77676999 is a deficient number, since it is larger than the sum of its proper divisors (25892337).

77676999 is a wasteful number, since it uses less digits than its factorization.

77676999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25892336.

The product of its digits is 9001692, while the sum is 60.

The square root of 77676999 is about 8813.4555652139. The cubic root of 77676999 is about 426.6752774005.

The spelling of 77676999 in words is "seventy-seven million, six hundred seventy-six thousand, nine hundred ninety-nine".