76981814 has 64 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 28297728.

The previous prime is 76981799. The next prime is 76981841. The reversal of 76981814 is 41818967.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 429977 + ... + 430155.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^76981814 is an apocalyptic number.

76981814 is a deficient number, since it is larger than the sum of its proper divisors (75427786).

76981814 is a wasteful number, since it uses less digits than its factorization.

76981814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its digits is 96768, while the sum is 44.

The square root of 76981814 is about 8773.9280826777. The cubic root of 76981814 is about 425.3985907664.

The spelling of 76981814 in words is "seventy-six million, nine hundred eighty-one thousand, eight hundred fourteen".