76854981 has 32 divisors (see below), whose sum is σ = 125824000. Its totient is φ = 41595120.

The previous prime is 76854979. The next prime is 76855003. The reversal of 76854981 is 18945867.

It is not a de Polignac number, because 76854981 - 2¹ = 76854979 is a prime.

It is a super-2 number, since 2×76854981² = 11813376209020722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76854981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76852981) 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, 17586 + ... + 21516.

It is an arithmetic number, because the mean of its divisors is an integer number (3932000).

Almost surely, 2^76854981 is an apocalyptic number.

It is an amenable number.

76854981 is a deficient number, since it is larger than the sum of its proper divisors (48969019).

76854981 is a wasteful number, since it uses less digits than its factorization.

76854981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974 (or 3960 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 76854981 is about 8766.6972686411. The cubic root of 76854981 is about 425.1648375584.

The spelling of 76854981 in words is "seventy-six million, eight hundred fifty-four thousand, nine hundred eighty-one".