76704981 has 8 divisors (see below), whose sum is σ = 103328064. Its totient is φ = 50609280.

The previous prime is 76704967. The next prime is 76704997. The reversal of 76704981 is 18940767.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76704981 - 2⁵ = 76704949 is a prime.

It is a super-2 number, since 2×76704981² = 11767308220420722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76774981) 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 7 ways as a sum of consecutive naturals, for example, 131505 + ... + 132086.

It is an arithmetic number, because the mean of its divisors is an integer number (12916008).

Almost surely, 2^76704981 is an apocalyptic number.

It is an amenable number.

76704981 is a deficient number, since it is larger than the sum of its proper divisors (26623083).

76704981 is a wasteful number, since it uses less digits than its factorization.

76704981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263691.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 76704981 is about 8758.1379870381. The cubic root of 76704981 is about 424.8880554069. Note that the first 3 decimals are identical.

The spelling of 76704981 in words is "seventy-six million, seven hundred four thousand, nine hundred eighty-one".