99704642 has 4 divisors (see below), whose sum is σ = 149556966. Its totient is φ = 49852320.

The previous prime is 99704629. The next prime is 99704687. The reversal of 99704642 is 24640799.

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., 77246521 + 22458121 = 8789^2 + 4739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99704642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24926159 + ... + 24926162.

Almost surely, 2^99704642 is an apocalyptic number.

99704642 is a deficient number, since it is larger than the sum of its proper divisors (49852324).

99704642 is a wasteful number, since it uses less digits than its factorization.

99704642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49852323.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 99704642 is about 9985.2211793230. The cubic root of 99704642 is about 463.7014559175.

The spelling of 99704642 in words is "ninety-nine million, seven hundred four thousand, six hundred forty-two".