12099898 has 8 divisors (see below), whose sum is σ = 18174420. Its totient is φ = 6041760.

The previous prime is 12099883. The next prime is 12099907. The reversal of 12099898 is 89899021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 218089 = 3447^2 + 467^2 .

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

It is a super-2 number, since 2×12099898² = 292815063220808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2043 + ... + 5326.

Almost surely, 2^12099898 is an apocalyptic number.

12099898 is a deficient number, since it is larger than the sum of its proper divisors (6074522).

12099898 is an equidigital number, since it uses as much as digits as its factorization.

12099898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 12099898 is about 3478.4907646852. The cubic root of 12099898 is about 229.5763973722.

The spelling of 12099898 in words is "twelve million, ninety-nine thousand, eight hundred ninety-eight".