84640302 has 24 divisors (see below), whose sum is σ = 190180536. Its totient is φ = 28213272.

The previous prime is 84640289. The next prime is 84640321. The reversal of 84640302 is 20304648.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86593 + ... + 87564.

It is an arithmetic number, because the mean of its divisors is an integer number (7924189).

Almost surely, 2^84640302 is an apocalyptic number.

84640302 is an abundant number, since it is smaller than the sum of its proper divisors (105540234).

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

84640302 is a wasteful number, since it uses less digits than its factorization.

84640302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174174 (or 174162 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 84640302 is about 9200.0164130288. The cubic root of 84640302 is about 439.0618821274.

The spelling of 84640302 in words is "eighty-four million, six hundred forty thousand, three hundred two".