84049155 has 48 divisors (see below), whose sum is σ = 150612384. Its totient is φ = 43338240.

The previous prime is 84049151. The next prime is 84049159. The reversal of 84049155 is 55194048.

It is an interprime number because it is at equal distance from previous prime (84049151) and next prime (84049159).

It is not a de Polignac number, because 84049155 - 2² = 84049151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84049151) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 183687 + ... + 184143.

It is an arithmetic number, because the mean of its divisors is an integer number (3137758).

Almost surely, 2^84049155 is an apocalyptic number.

84049155 is a deficient number, since it is larger than the sum of its proper divisors (66563229).

84049155 is a wasteful number, since it uses less digits than its factorization.

84049155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 84049155 is about 9167.8326228177. The cubic root of 84049155 is about 438.0373240227.

The spelling of 84049155 in words is "eighty-four million, forty-nine thousand, one hundred fifty-five".