84170963 has 4 divisors (see below), whose sum is σ = 87073440. Its totient is φ = 81268488.

The previous prime is 84170959. The next prime is 84170981. The reversal of 84170963 is 36907148.

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 84170963 - 2² = 84170959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84170923) 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 3 ways as a sum of consecutive naturals, for example, 1451195 + ... + 1451252.

It is an arithmetic number, because the mean of its divisors is an integer number (21768360).

Almost surely, 2^84170963 is an apocalyptic number.

84170963 is a deficient number, since it is larger than the sum of its proper divisors (2902477).

84170963 is a wasteful number, since it uses less digits than its factorization.

84170963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902476.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 84170963 is about 9174.4734453809. The cubic root of 84170963 is about 438.2488299981.

The spelling of 84170963 in words is "eighty-four million, one hundred seventy thousand, nine hundred sixty-three".