84728027 has 4 divisors (see below), whose sum is σ = 84791376. Its totient is φ = 84664680.

The previous prime is 84728023. The next prime is 84728029. The reversal of 84728027 is 72082748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84728027 - 2² = 84728023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84728023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29624 + ... + 32357.

It is an arithmetic number, because the mean of its divisors is an integer number (21197844).

Almost surely, 2^84728027 is an apocalyptic number.

84728027 is a deficient number, since it is larger than the sum of its proper divisors (63349).

84728027 is a wasteful number, since it uses less digits than its factorization.

84728027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63348.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 84728027 is about 9204.7828328538. The cubic root of 84728027 is about 439.2135175523.

The spelling of 84728027 in words is "eighty-four million, seven hundred twenty-eight thousand, twenty-seven".