43998099 has 4 divisors (see below), whose sum is σ = 58664136. Its totient is φ = 29332064.

The previous prime is 43998077. The next prime is 43998107. The reversal of 43998099 is 99089934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43998099 - 2⁷ = 43997971 is a prime.

It is a super-2 number, since 2×43998099² = 3871665431227602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43798099) 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, 7333014 + ... + 7333019.

It is an arithmetic number, because the mean of its divisors is an integer number (14666034).

Almost surely, 2^43998099 is an apocalyptic number.

43998099 is a deficient number, since it is larger than the sum of its proper divisors (14666037).

43998099 is a wasteful number, since it uses less digits than its factorization.

43998099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14666036.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 43998099 is about 6633.1062858965. The cubic root of 43998099 is about 353.0297492229.

The spelling of 43998099 in words is "forty-three million, nine hundred ninety-eight thousand, ninety-nine".