84575966 has 4 divisors (see below), whose sum is σ = 126863952. Its totient is φ = 42287982.

The previous prime is 84575963. The next prime is 84575987. The reversal of 84575966 is 66957548.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84575963) 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 as a sum of consecutive naturals, namely, 21143990 + ... + 21143993.

It is an arithmetic number, because the mean of its divisors is an integer number (31715988).

Almost surely, 2^84575966 is an apocalyptic number.

84575966 is a deficient number, since it is larger than the sum of its proper divisors (42287986).

84575966 is a wasteful number, since it uses less digits than its factorization.

84575966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42287985.

The product of its digits is 1814400, while the sum is 50.

The square root of 84575966 is about 9196.5192328402. The cubic root of 84575966 is about 438.9506087164.

The spelling of 84575966 in words is "eighty-four million, five hundred seventy-five thousand, nine hundred sixty-six".