76866867 has 32 divisors (see below), whose sum is σ = 141980160. Its totient is φ = 39929760.

The previous prime is 76866863. The next prime is 76866919.

76866867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 76866867 - 2² = 76866863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76866863) 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 31 ways as a sum of consecutive naturals, for example, 16408 + ... + 20565.

It is an arithmetic number, because the mean of its divisors is an integer number (4436880).

Almost surely, 2^76866867 is an apocalyptic number.

76866867 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

76866867 is a deficient number, since it is larger than the sum of its proper divisors (65113293).

76866867 is a wasteful number, since it uses less digits than its factorization.

76866867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37000 (or 36994 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 76866867 is about 8767.3751488116. The cubic root of 76866867 is about 425.1867543715.

The spelling of 76866867 in words is "seventy-six million, eight hundred sixty-six thousand, eight hundred sixty-seven".