99898078 has 8 divisors (see below), whose sum is σ = 171253872. Its totient is φ = 42813456.

The previous prime is 99898061. The next prime is 99898079. The reversal of 99898078 is 87089899.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99898079) 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, 3567775 + ... + 3567802.

It is an arithmetic number, because the mean of its divisors is an integer number (21406734).

Almost surely, 2^99898078 is an apocalyptic number.

99898078 is a deficient number, since it is larger than the sum of its proper divisors (71355794).

99898078 is a wasteful number, since it uses less digits than its factorization.

99898078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135586.

The product of its (nonzero) digits is 2612736, while the sum is 58.

The square root of 99898078 is about 9994.9026008261. The cubic root of 99898078 is about 464.0011364172.

The spelling of 99898078 in words is "ninety-nine million, eight hundred ninety-eight thousand, seventy-eight".