99998146 has 8 divisors (see below), whose sum is σ = 150063120. Its totient is φ = 49977108.

The previous prime is 99998111. The next prime is 99998147. The reversal of 99998146 is 64189999.

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

It is not an unprimeable number, because it can be changed into a prime (99998147) 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, 4536 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (18757890).

Almost surely, 2^99998146 is an apocalyptic number.

99998146 is a deficient number, since it is larger than the sum of its proper divisors (50064974).

99998146 is a wasteful number, since it uses less digits than its factorization.

99998146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21968.

The product of its digits is 1259712, while the sum is 55.

The square root of 99998146 is about 9999.9072995703. The cubic root of 99998146 is about 464.1560148417.

It can be divided in two parts, 9999 and 8146, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 99998146 in words is "ninety-nine million, nine hundred ninety-eight thousand, one hundred forty-six".