84908642 has 48 divisors (see below), whose sum is σ = 166966272. Its totient is φ = 31599360.

The previous prime is 84908633. The next prime is 84908651. The reversal of 84908642 is 24680948.

It is an interprime number because it is at equal distance from previous prime (84908633) and next prime (84908651).

It is a self number, because there is not a number n which added to its sum of digits gives 84908642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39167 + ... + 41277.

It is an arithmetic number, because the mean of its divisors is an integer number (3478464).

Almost surely, 2^84908642 is an apocalyptic number.

84908642 is a deficient number, since it is larger than the sum of its proper divisors (82057630).

84908642 is a wasteful number, since it uses less digits than its factorization.

84908642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 84908642 is about 9214.5885420891. The cubic root of 84908642 is about 439.5253869955.

The spelling of 84908642 in words is "eighty-four million, nine hundred eight thousand, six hundred forty-two".