84663973 has 4 divisors (see below), whose sum is σ = 84732480. Its totient is φ = 84595468.

The previous prime is 84663959. The next prime is 84664001. The reversal of 84663973 is 37936648.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84663973 - 2⁵ = 84663941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84663473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32365 + ... + 34882.

It is an arithmetic number, because the mean of its divisors is an integer number (21183120).

Almost surely, 2^84663973 is an apocalyptic number.

It is an amenable number.

84663973 is a deficient number, since it is larger than the sum of its proper divisors (68507).

84663973 is a wasteful number, since it uses less digits than its factorization.

84663973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68506.

The product of its digits is 653184, while the sum is 46.

The square root of 84663973 is about 9201.3027881926. The cubic root of 84663973 is about 439.1028085138.

The spelling of 84663973 in words is "eighty-four million, six hundred sixty-three thousand, nine hundred seventy-three".