84408529 has 4 divisors (see below), whose sum is σ = 84428784. Its totient is φ = 84388276.

The previous prime is 84408523. The next prime is 84408557. The reversal of 84408529 is 92580448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84408529 - 2³ = 84408521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84408491 and 84408500.

It is not an unprimeable number, because it can be changed into a prime (84408521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (21107196).

Almost surely, 2^84408529 is an apocalyptic number.

It is an amenable number.

84408529 is a deficient number, since it is larger than the sum of its proper divisors (20255).

84408529 is a wasteful number, since it uses less digits than its factorization.

84408529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 84408529 is about 9187.4114417501. The cubic root of 84408529 is about 438.6607504548.

The spelling of 84408529 in words is "eighty-four million, four hundred eight thousand, five hundred twenty-nine".