99998354 has 4 divisors (see below), whose sum is σ = 149997534. Its totient is φ = 49999176.

The previous prime is 99998323. The next prime is 99998357. The reversal of 99998354 is 45389999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45389999 = 593 ⋅76543.

It can be written as a sum of positive squares in only one way, i.e., 87853129 + 12145225 = 9373^2 + 3485^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99998354.

It is not an unprimeable number, because it can be changed into a prime (99998357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999587 + ... + 24999590.

Almost surely, 2^99998354 is an apocalyptic number.

99998354 is a deficient number, since it is larger than the sum of its proper divisors (49999180).

99998354 is a wasteful number, since it uses less digits than its factorization.

99998354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49999179.

The product of its digits is 3149280, while the sum is 56.

The square root of 99998354 is about 9999.9176996613. The cubic root of 99998354 is about 464.1563366622.

The spelling of 99998354 in words is "ninety-nine million, nine hundred ninety-eight thousand, three hundred fifty-four".