84576047 has 4 divisors (see below), whose sum is σ = 84597240. Its totient is φ = 84554856.

The previous prime is 84576017. The next prime is 84576053. The reversal of 84576047 is 74067548.

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 84576047 - 2⁸ = 84575791 is a prime.

It is a super-2 number, since 2×84576047² = 14306215452292418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84575995 and 84576013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84576007) 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, 2597 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (21149310).

Almost surely, 2^84576047 is an apocalyptic number.

84576047 is a deficient number, since it is larger than the sum of its proper divisors (21193).

84576047 is a wasteful number, since it uses less digits than its factorization.

84576047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21192.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 84576047 is about 9196.5236366792. The cubic root of 84576047 is about 438.9507488468.

The spelling of 84576047 in words is "eighty-four million, five hundred seventy-six thousand, forty-seven".