84652809 has 32 divisors (see below), whose sum is σ = 126720000. Its totient is φ = 49953024.

The previous prime is 84652759. The next prime is 84652817. The reversal of 84652809 is 90825648.

It is not a de Polignac number, because 84652809 - 2⁸ = 84652553 is a prime.

It is a super-3 number, since 3×84652809³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (84652829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192612 + ... + 193050.

It is an arithmetic number, because the mean of its divisors is an integer number (3960000).

Almost surely, 2^84652809 is an apocalyptic number.

It is an amenable number.

84652809 is a deficient number, since it is larger than the sum of its proper divisors (42067191).

84652809 is a wasteful number, since it uses less digits than its factorization.

84652809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 84652809 is about 9200.6961149687. The cubic root of 84652809 is about 439.0835072728.

The spelling of 84652809 in words is "eighty-four million, six hundred fifty-two thousand, eight hundred nine".