99967898 has 8 divisors (see below), whose sum is σ = 152410260. Its totient is φ = 49164480.

The previous prime is 99967897. The next prime is 99967927. The reversal of 99967898 is 89876999.

It can be written as a sum of positive squares in 2 ways, for example, as 99940009 + 27889 = 9997^2 + 167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99967897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409583 + ... + 409826.

Almost surely, 2^99967898 is an apocalyptic number.

99967898 is a deficient number, since it is larger than the sum of its proper divisors (52442362).

99967898 is a wasteful number, since it uses less digits than its factorization.

99967898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819472.

The product of its digits is 17635968, while the sum is 65.

The square root of 99967898 is about 9998.3947711620. The cubic root of 99967898 is about 464.1092099506.

The spelling of 99967898 in words is "ninety-nine million, nine hundred sixty-seven thousand, eight hundred ninety-eight".