86984893 has 4 divisors (see below), whose sum is σ = 87197980. Its totient is φ = 86771808.

The previous prime is 86984867. The next prime is 86984927. The reversal of 86984893 is 39848968.

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 78092569 + 8892324 = 8837^2 + 2982^2 .

It is a cyclic number.

It is not a de Polignac number, because 86984893 - 2¹⁷ = 86853821 is a prime.

It is a super-2 number, since 2×86984893² = 15132743220442898, 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 (86984813) 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, 105930 + ... + 106747.

It is an arithmetic number, because the mean of its divisors is an integer number (21799495).

Almost surely, 2^86984893 is an apocalyptic number.

It is an amenable number.

86984893 is a deficient number, since it is larger than the sum of its proper divisors (213087).

86984893 is a wasteful number, since it uses less digits than its factorization.

86984893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213086.

The product of its digits is 2985984, while the sum is 55.

The square root of 86984893 is about 9326.5691977275. The cubic root of 86984893 is about 443.0791132378.

The spelling of 86984893 in words is "eighty-six million, nine hundred eighty-four thousand, eight hundred ninety-three".