84643028 has 12 divisors (see below), whose sum is σ = 148481760. Its totient is φ = 42219672.

The previous prime is 84643007. The next prime is 84643057. The reversal of 84643028 is 82034648.

It is a congruent number.

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, 23576 + ... + 26927.

It is an arithmetic number, because the mean of its divisors is an integer number (12373480).

Almost surely, 2^84643028 is an apocalyptic number.

It is an amenable number.

84643028 is a deficient number, since it is larger than the sum of its proper divisors (63838732).

84643028 is a wasteful number, since it uses less digits than its factorization.

84643028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50926 (or 50924 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 84643028 is about 9200.1645637456. The cubic root of 84643028 is about 439.0665956812.

The spelling of 84643028 in words is "eighty-four million, six hundred forty-three thousand, twenty-eight".