3998244097 has 4 divisors (see below), whose sum is σ = 4025078100. Its totient is φ = 3971410096.

The previous prime is 3998244037. The next prime is 3998244149. The reversal of 3998244097 is 7904428993.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1428159681 + 2570084416 = 37791^2 + 50696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3998244097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3998244037) 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, 13416778 + ... + 13417075.

It is an arithmetic number, because the mean of its divisors is an integer number (1006269525).

Almost surely, 2^3998244097 is an apocalyptic number.

It is an amenable number.

3998244097 is a deficient number, since it is larger than the sum of its proper divisors (26834003).

3998244097 is a wasteful number, since it uses less digits than its factorization.

3998244097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26834002.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 3998244097 is about 63231.6700475324. The cubic root of 3998244097 is about 1587.1687411162.

The spelling of 3998244097 in words is "three billion, nine hundred ninety-eight million, two hundred forty-four thousand, ninety-seven".