84657028 has 12 divisors (see below), whose sum is σ = 148231692. Its totient is φ = 42305120.

The previous prime is 84657019. The next prime is 84657037. The reversal of 84657028 is 82075648.

It is an interprime number because it is at equal distance from previous prime (84657019) and next prime (84657037).

It can be written as a sum of positive squares in 2 ways, for example, as 65577604 + 19079424 = 8098^2 + 4368^2 .

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 3 ways as a sum of consecutive naturals, for example, 4218 + ... + 13678.

It is an arithmetic number, because the mean of its divisors is an integer number (12352641).

Almost surely, 2^84657028 is an apocalyptic number.

It is an amenable number.

84657028 is a deficient number, since it is larger than the sum of its proper divisors (63574664).

84657028 is a wasteful number, since it uses less digits than its factorization.

84657028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11702 (or 11700 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 84657028 is about 9200.9253882422. The cubic root of 84657028 is about 439.0908016263.

The spelling of 84657028 in words is "eighty-four million, six hundred fifty-seven thousand, twenty-eight".