84005642 has 8 divisors (see below), whose sum is σ = 144009696. Its totient is φ = 36002412.

The previous prime is 84005633. The next prime is 84005659. The reversal of 84005642 is 24650048.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3000188 + ... + 3000215.

It is an arithmetic number, because the mean of its divisors is an integer number (18001212).

Almost surely, 2^84005642 is an apocalyptic number.

84005642 is a deficient number, since it is larger than the sum of its proper divisors (60004054).

84005642 is a wasteful number, since it uses less digits than its factorization.

84005642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000412.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 84005642 is about 9165.4591810776. The cubic root of 84005642 is about 437.9617190260.

The spelling of 84005642 in words is "eighty-four million, five thousand, six hundred forty-two".