999963322 has 4 divisors (see below), whose sum is σ = 1499944986. Its totient is φ = 499981660.

The previous prime is 999963317. The next prime is 999963337. The reversal of 999963322 is 223369999.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 998496801 + 1466521 = 31599^2 + 1211^2 .

It is a super-3 number, since 3×999963322³ (a number of 28 digits) contains 333 as substring.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 999963322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249990829 + ... + 249990832.

Almost surely, 2^999963322 is an apocalyptic number.

999963322 is a deficient number, since it is larger than the sum of its proper divisors (499981664).

999963322 is a wasteful number, since it uses less digits than its factorization.

999963322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499981663.

The product of its digits is 1417176, while the sum is 52.

The square root of 999963322 is about 31622.1966662659. The cubic root of 999963322 is about 999.9877738505.

The spelling of 999963322 in words is "nine hundred ninety-nine million, nine hundred sixty-three thousand, three hundred twenty-two".