3898994297 has 4 divisors (see below), whose sum is σ = 4253448336. Its totient is φ = 3544540260.

The previous prime is 3898994287. The next prime is 3898994347. The reversal of 3898994297 is 7924998983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3898994297 - 2²⁰ = 3897945721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3898994287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177227003 + ... + 177227024.

It is an arithmetic number, because the mean of its divisors is an integer number (1063362084).

Almost surely, 2^3898994297 is an apocalyptic number.

It is an amenable number.

3898994297 is a deficient number, since it is larger than the sum of its proper divisors (354454039).

3898994297 is a wasteful number, since it uses less digits than its factorization.

3898994297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354454038.

The product of its digits is 70543872, while the sum is 68.

The square root of 3898994297 is about 62441.9273965819. The cubic root of 3898994297 is about 1573.9256026246.

The spelling of 3898994297 in words is "three billion, eight hundred ninety-eight million, nine hundred ninety-four thousand, two hundred ninety-seven".