84678027 has 12 divisors (see below), whose sum is σ = 131337576. Its totient is φ = 48387360.

The previous prime is 84677959. The next prime is 84678031. The reversal of 84678027 is 72087648.

It is not a de Polignac number, because 84678027 - 2²² = 80483723 is a prime.

It is a super-2 number, since 2×84678027² = 14340736513225458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84678027.

It is not an unprimeable number, because it can be changed into a prime (84678127) 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, 287874 + ... + 288167.

It is an arithmetic number, because the mean of its divisors is an integer number (10944798).

Almost surely, 2^84678027 is an apocalyptic number.

84678027 is a deficient number, since it is larger than the sum of its proper divisors (46659549).

84678027 is a wasteful number, since it uses less digits than its factorization.

84678027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576058 (or 576051 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 84678027 is about 9202.0664527051. The cubic root of 84678027 is about 439.1271038121.

The spelling of 84678027 in words is "eighty-four million, six hundred seventy-eight thousand, twenty-seven".