99690298 has 4 divisors (see below), whose sum is σ = 149535450. Its totient is φ = 49845148.

The previous prime is 99690293. The next prime is 99690299. The reversal of 99690298 is 89209699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89209699 = 173 ⋅515663.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 149769 = 9977^2 + 387^2 .

It is not an unprimeable number, because it can be changed into a prime (99690293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24922573 + ... + 24922576.

Almost surely, 2^99690298 is an apocalyptic number.

99690298 is a deficient number, since it is larger than the sum of its proper divisors (49845152).

99690298 is a wasteful number, since it uses less digits than its factorization.

99690298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49845151.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 99690298 is about 9984.5028919822. The cubic root of 99690298 is about 463.6792180606.

The spelling of 99690298 in words is "ninety-nine million, six hundred ninety thousand, two hundred ninety-eight".