76666830 has 16 divisors (see below), whose sum is σ = 184000464. Its totient is φ = 20444480.

The previous prime is 76666829. The next prime is 76666873. The reversal of 76666830 is 3866667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277751 + ... + 1277810.

It is an arithmetic number, because the mean of its divisors is an integer number (11500029).

Almost surely, 2^76666830 is an apocalyptic number.

76666830 is an abundant number, since it is smaller than the sum of its proper divisors (107333634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76666830 is a wasteful number, since it uses less digits than its factorization.

76666830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555571.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 76666830 is about 8755.9596846948. The cubic root of 76666830 is about 424.8176010844.

The spelling of 76666830 in words is "seventy-six million, six hundred sixty-six thousand, eight hundred thirty".