84435020 has 12 divisors (see below), whose sum is σ = 177313584. Its totient is φ = 33774000.

The previous prime is 84435019. The next prime is 84435049. The reversal of 84435020 is 2053448.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110856 + ... + 2110895.

It is an arithmetic number, because the mean of its divisors is an integer number (14776132).

Almost surely, 2^84435020 is an apocalyptic number.

It is an amenable number.

84435020 is an abundant number, since it is smaller than the sum of its proper divisors (92878564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84435020 is a wasteful number, since it uses less digits than its factorization.

84435020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221760 (or 4221758 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 84435020 is about 9188.8530296224. The cubic root of 84435020 is about 438.7066358118.

Adding to 84435020 its reverse (2053448), we get a palindrome (86488468).

The spelling of 84435020 in words is "eighty-four million, four hundred thirty-five thousand, twenty".