84860933481 has 9 divisors (see below), whose sum is σ = 122578166269. Its totient is φ = 56573373036.

The previous prime is 84860933473. The next prime is 84860933497. The reversal of 84860933481 is 18433906848.

The square root of 84860933481 is 291309.

It is a perfect power (a square), and thus also a powerful number.

84860933481 is a `hidden beast` number, since 84 + 86 + 0 + 9 + 3 + 3 + 481 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 84860933481 - 2³ = 84860933473 is a prime.

It is a super-3 number, since 3×84860933481³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84860933401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 825376 + ... + 922478.

Almost surely, 2^84860933481 is an apocalyptic number.

84860933481 is the 291309-th square number.

84860933481 is the 145655-th centered octagonal number.

It is an amenable number.

84860933481 is a deficient number, since it is larger than the sum of its proper divisors (37717232788).

84860933481 is an frugal number, since it uses more digits than its factorization.

84860933481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194212 (or 97106 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 84860933481 in words is "eighty-four billion, eight hundred sixty million, nine hundred thirty-three thousand, four hundred eighty-one".