84759381 has 24 divisors (see below), whose sum is σ = 141215360. Its totient is φ = 47985696.

The previous prime is 84759359. The next prime is 84759397. The reversal of 84759381 is 18395748.

It is not a de Polignac number, because 84759381 - 2⁷ = 84759253 is a prime.

It is a super-2 number, since 2×84759381² = 14368305335006322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84759481) 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 23 ways as a sum of consecutive naturals, for example, 696 + ... + 13038.

Almost surely, 2^84759381 is an apocalyptic number.

It is an amenable number.

84759381 is a deficient number, since it is larger than the sum of its proper divisors (56455979).

84759381 is a wasteful number, since it uses less digits than its factorization.

84759381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12465 (or 12462 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 84759381 is about 9206.4858116439. The cubic root of 84759381 is about 439.2676885383.

The spelling of 84759381 in words is "eighty-four million, seven hundred fifty-nine thousand, three hundred eighty-one".