84974186 has 12 divisors (see below), whose sum is σ = 140102466. Its totient is φ = 38624520.

The previous prime is 84974173. The next prime is 84974191. The reversal of 84974186 is 68147948.

It can be written as a sum of positive squares in only one way, i.e., 84364225 + 609961 = 9185^2 + 781^2 .

It is a super-2 number, since 2×84974186² = 14441224572725192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84974186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175325 + ... + 175808.

Almost surely, 2^84974186 is an apocalyptic number.

84974186 is a deficient number, since it is larger than the sum of its proper divisors (55128280).

84974186 is a wasteful number, since it uses less digits than its factorization.

84974186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351157 (or 351146 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 84974186 is about 9218.1443902773. The cubic root of 84974186 is about 439.6384529990.

The spelling of 84974186 in words is "eighty-four million, nine hundred seventy-four thousand, one hundred eighty-six".