84509235 has 12 divisors (see below), whose sum is σ = 146482752. Its totient is φ = 45071568.

The previous prime is 84509203. The next prime is 84509263. The reversal of 84509235 is 53290548.

It is not a de Polignac number, because 84509235 - 2⁵ = 84509203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84509235.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938947 + ... + 939036.

It is an arithmetic number, because the mean of its divisors is an integer number (12206896).

Almost surely, 2^84509235 is an apocalyptic number.

84509235 is a deficient number, since it is larger than the sum of its proper divisors (61973517).

84509235 is a wasteful number, since it uses less digits than its factorization.

84509235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877994 (or 1877991 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 84509235 is about 9192.8904594801. The cubic root of 84509235 is about 438.8351333570.

The spelling of 84509235 in words is "eighty-four million, five hundred nine thousand, two hundred thirty-five".