86984773 has 4 divisors (see below), whose sum is σ = 87962220. Its totient is φ = 86007328.

The previous prime is 86984753. The next prime is 86984783. The reversal of 86984773 is 37748968.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11607649 + 75377124 = 3407^2 + 8682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86984773 is a prime.

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 86984773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86984753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488590 + ... + 488767.

It is an arithmetic number, because the mean of its divisors is an integer number (21990555).

Almost surely, 2^86984773 is an apocalyptic number.

It is an amenable number.

86984773 is a deficient number, since it is larger than the sum of its proper divisors (977447).

86984773 is an equidigital number, since it uses as much as digits as its factorization.

86984773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977446.

The product of its digits is 2032128, while the sum is 52.

The square root of 86984773 is about 9326.5627644915. The cubic root of 86984773 is about 443.0789094878.

The spelling of 86984773 in words is "eighty-six million, nine hundred eighty-four thousand, seven hundred seventy-three".