84404727 has 16 divisors (see below), whose sum is σ = 136412160. Its totient is φ = 51154200.

The previous prime is 84404699. The next prime is 84404767. The reversal of 84404727 is 72740448.

It is a de Polignac number, because none of the positive numbers 2^k-84404727 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 84404691 and 84404700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84404767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141799 + ... + 142392.

It is an arithmetic number, because the mean of its divisors is an integer number (8525760).

Almost surely, 2^84404727 is an apocalyptic number.

84404727 is a deficient number, since it is larger than the sum of its proper divisors (52007433).

84404727 is a wasteful number, since it uses less digits than its factorization.

84404727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284211 (or 284205 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 84404727 is about 9187.2045258610. The cubic root of 84404727 is about 438.6541641803.

The spelling of 84404727 in words is "eighty-four million, four hundred four thousand, seven hundred twenty-seven".