84651025 has 6 divisors (see below), whose sum is σ = 104967302. Its totient is φ = 67720800.

The previous prime is 84651013. The next prime is 84651059. The reversal of 84651025 is 52015648.

It can be written as a sum of positive squares in 3 ways, for example, as 29550096 + 55100929 = 5436^2 + 7423^2 .

It is not a de Polignac number, because 84651025 - 2⁷ = 84650897 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 1692996 + ... + 1693045.

Almost surely, 2^84651025 is an apocalyptic number.

It is an amenable number.

84651025 is a deficient number, since it is larger than the sum of its proper divisors (20316277).

84651025 is a wasteful number, since it uses less digits than its factorization.

84651025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386051 (or 3386046 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 84651025 is about 9200.5991652718. The cubic root of 84651025 is about 439.0804227897.

The spelling of 84651025 in words is "eighty-four million, six hundred fifty-one thousand, twenty-five".