84155516 has 6 divisors (see below), whose sum is σ = 147272160. Its totient is φ = 42077756.

The previous prime is 84155497. The next prime is 84155537. The reversal of 84155516 is 61555148.

It is a happy number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10519436 + ... + 10519443.

It is an arithmetic number, because the mean of its divisors is an integer number (24545360).

Almost surely, 2^84155516 is an apocalyptic number.

It is an amenable number.

84155516 is a deficient number, since it is larger than the sum of its proper divisors (63116644).

84155516 is a wasteful number, since it uses less digits than its factorization.

84155516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21038883 (or 21038881 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 84155516 is about 9173.6315600748. The cubic root of 84155516 is about 438.2220193119. Note that the first 3 decimals are identical.

It can be divided in two parts, 8415 and 5516, that added together give a palindrome (13931).

The spelling of 84155516 in words is "eighty-four million, one hundred fifty-five thousand, five hundred sixteen".