996505573 has 4 divisors (see below), whose sum is σ = 1138863520. Its totient is φ = 854147628.

The previous prime is 996505501. The next prime is 996505589. The reversal of 996505573 is 375505699.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-996505573 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 (996505073) 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, 71178963 + ... + 71178976.

It is an arithmetic number, because the mean of its divisors is an integer number (284715880).

Almost surely, 2^996505573 is an apocalyptic number.

It is an amenable number.

996505573 is a deficient number, since it is larger than the sum of its proper divisors (142357947).

996505573 is a wasteful number, since it uses less digits than its factorization.

996505573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142357946.

The product of its (nonzero) digits is 1275750, while the sum is 49.

The square root of 996505573 is about 31567.4765066833. The cubic root of 996505573 is about 998.8338315799.

The spelling of 996505573 in words is "nine hundred ninety-six million, five hundred five thousand, five hundred seventy-three".