84009156 has 192 divisors, whose sum is σ = 263208960. Its totient is φ = 20211840.

The previous prime is 84009137. The next prime is 84009161. The reversal of 84009156 is 65190048.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1253835 + ... + 1253901.

It is an arithmetic number, because the mean of its divisors is an integer number (1370880).

Almost surely, 2^84009156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84009156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131604480).

84009156 is an abundant number, since it is smaller than the sum of its proper divisors (179199804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84009156 is a wasteful number, since it uses less digits than its factorization.

84009156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 84009156 is about 9165.6508770518. The cubic root of 84009156 is about 437.9678256636.

The spelling of 84009156 in words is "eighty-four million, nine thousand, one hundred fifty-six".