76886649 has 12 divisors (see below), whose sum is σ = 126924096. Its totient is φ = 43935192.

The previous prime is 76886647. The next prime is 76886659. The reversal of 76886649 is 94668867.

It is not a de Polignac number, because 76886649 - 2¹ = 76886647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76886595 and 76886604.

It is not an unprimeable number, because it can be changed into a prime (76886647) 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 in 11 ways as a sum of consecutive naturals, for example, 610149 + ... + 610274.

It is an arithmetic number, because the mean of its divisors is an integer number (10577008).

Almost surely, 2^76886649 is an apocalyptic number.

It is an amenable number.

76886649 is a deficient number, since it is larger than the sum of its proper divisors (50037447).

76886649 is a wasteful number, since it uses less digits than its factorization.

76886649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220436 (or 1220433 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 76886649 is about 8768.5032360147. The cubic root of 76886649 is about 425.2232257549.

The spelling of 76886649 in words is "seventy-six million, eight hundred eighty-six thousand, six hundred forty-nine".