84015556 has 9 divisors (see below), whose sum is σ = 147059311. Its totient is φ = 41998612.

The previous prime is 84015541. The next prime is 84015563. The reversal of 84015556 is 65551048.

It is a happy number.

The square root of 84015556 is 9166.

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

It is a super-2 number, since 2×84015556² = 14117227299978272, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16041 + ... + 20623.

Almost surely, 2^84015556 is an apocalyptic number.

84015556 is the 9166-th square number.

It is an amenable number.

84015556 is a deficient number, since it is larger than the sum of its proper divisors (63043755).

84015556 is an frugal number, since it uses more digits than its factorization.

84015556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9170 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The cubic root of 84015556 is about 437.9789471613.

The spelling of 84015556 in words is "eighty-four million, fifteen thousand, five hundred fifty-six".