84576945 has 16 divisors (see below), whose sum is σ = 135594432. Its totient is φ = 45017280.

The previous prime is 84576929. The next prime is 84576953. The reversal of 84576945 is 54967548.

It is not a de Polignac number, because 84576945 - 2⁴ = 84576929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84576894 and 84576903.

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 15 ways as a sum of consecutive naturals, for example, 2455 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (8474652).

Almost surely, 2^84576945 is an apocalyptic number.

It is an amenable number.

84576945 is a deficient number, since it is larger than the sum of its proper divisors (51017487).

84576945 is a wasteful number, since it uses less digits than its factorization.

84576945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312.

The product of its digits is 1209600, while the sum is 48.

The square root of 84576945 is about 9196.5724593459. The cubic root of 84576945 is about 438.9523023851.

The spelling of 84576945 in words is "eighty-four million, five hundred seventy-six thousand, nine hundred forty-five".