76830281 has 24 divisors (see below), whose sum is σ = 92823360. Its totient is φ = 63249120.

The previous prime is 76830277. The next prime is 76830317. The reversal of 76830281 is 18203867.

It is not a de Polignac number, because 76830281 - 2² = 76830277 is a prime.

It is a super-2 number, since 2×76830281² = 11805784157077922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76830181) 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 23 ways as a sum of consecutive naturals, for example, 52151 + ... + 53603.

It is an arithmetic number, because the mean of its divisors is an integer number (3867640).

Almost surely, 2^76830281 is an apocalyptic number.

It is an amenable number.

76830281 is a deficient number, since it is larger than the sum of its proper divisors (15993079).

76830281 is a wasteful number, since it uses less digits than its factorization.

76830281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 76830281 is about 8765.2884151065. The cubic root of 76830281 is about 425.1192855479.

The spelling of 76830281 in words is "seventy-six million, eight hundred thirty thousand, two hundred eighty-one".