84653139 has 8 divisors (see below), whose sum is σ = 113279440. Its totient is φ = 56231136.

The previous prime is 84653123. The next prime is 84653143. The reversal of 84653139 is 93135648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84653139 - 2⁴ = 84653123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84653097 and 84653106.

It is not an unprimeable number, because it can be changed into a prime (84653539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50104 + ... + 51765.

It is an arithmetic number, because the mean of its divisors is an integer number (14159930).

Almost surely, 2^84653139 is an apocalyptic number.

84653139 is a deficient number, since it is larger than the sum of its proper divisors (28626301).

84653139 is a wasteful number, since it uses less digits than its factorization.

84653139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102149.

The product of its digits is 77760, while the sum is 39.

The square root of 84653139 is about 9200.7140483769. The cubic root of 84653139 is about 439.0840778283.

The spelling of 84653139 in words is "eighty-four million, six hundred fifty-three thousand, one hundred thirty-nine".