84674427 has 4 divisors (see below), whose sum is σ = 112899240. Its totient is φ = 56449616.

The previous prime is 84674419. The next prime is 84674441. The reversal of 84674427 is 72447648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84674427 - 2³ = 84674419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84674407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14112402 + ... + 14112407.

It is an arithmetic number, because the mean of its divisors is an integer number (28224810).

Almost surely, 2^84674427 is an apocalyptic number.

84674427 is a deficient number, since it is larger than the sum of its proper divisors (28224813).

84674427 is a wasteful number, since it uses less digits than its factorization.

84674427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28224812.

The product of its digits is 301056, while the sum is 42.

The square root of 84674427 is about 9201.8708423885. The cubic root of 84674427 is about 439.1208807102.

The spelling of 84674427 in words is "eighty-four million, six hundred seventy-four thousand, four hundred twenty-seven".