84678201 has 12 divisors (see below), whose sum is σ = 122448612. Its totient is φ = 56389536.

The previous prime is 84678199. The next prime is 84678211. The reversal of 84678201 is 10287648.

It can be written as a sum of positive squares in 2 ways, for example, as 61638201 + 23040000 = 7851^2 + 4800^2 .

It is not a de Polignac number, because 84678201 - 2¹ = 84678199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84678211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4255 + ... + 13691.

It is an arithmetic number, because the mean of its divisors is an integer number (10204051).

Almost surely, 2^84678201 is an apocalyptic number.

It is an amenable number.

84678201 is a deficient number, since it is larger than the sum of its proper divisors (37770411).

84678201 is a wasteful number, since it uses less digits than its factorization.

84678201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440 (or 10437 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 84678201 is about 9202.0759070984. The cubic root of 84678201 is about 439.1274045909.

The spelling of 84678201 in words is "eighty-four million, six hundred seventy-eight thousand, two hundred one".