999602 has 4 divisors (see below), whose sum is σ = 1499406. Its totient is φ = 499800.

The previous prime is 999599. The next prime is 999611. The reversal of 999602 is 206999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206999 = 13 ⋅15923.

It can be written as a sum of positive squares in only one way, i.e., 638401 + 361201 = 799^2 + 601^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249899 + ... + 249902.

2⁹⁹⁹⁶⁰² is an apocalyptic number.

999602 is a deficient number, since it is larger than the sum of its proper divisors (499804).

999602 is a wasteful number, since it uses less digits than its factorization.

999602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499803.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 999602 is about 999.8009801956. The cubic root of 999602 is about 99.9867315729.

The spelling of 999602 in words is "nine hundred ninety-nine thousand, six hundred two".