99999602 has 4 divisors (see below), whose sum is σ = 149999406. Its totient is φ = 49999800.

The previous prime is 99999589. The next prime is 99999611. The reversal of 99999602 is 20699999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20699999 = 17 ⋅1217647.

It can be written as a sum of positive squares in only one way, i.e., 87965641 + 12033961 = 9379^2 + 3469^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999899 + ... + 24999902.

Almost surely, 2^99999602 is an apocalyptic number.

99999602 is a deficient number, since it is larger than the sum of its proper divisors (49999804).

99999602 is a wasteful number, since it uses less digits than its factorization.

99999602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49999803.

The product of its (nonzero) digits is 708588, while the sum is 53.

The square root of 99999602 is about 9999.9800999802. The cubic root of 99999602 is about 464.1582675763.

The spelling of 99999602 in words is "ninety-nine million, nine hundred ninety-nine thousand, six hundred two".