3998207613 has 8 divisors (see below), whose sum is σ = 5331372448. Its totient is φ = 2665257264.

The previous prime is 3998207597. The next prime is 3998207627. The reversal of 3998207613 is 3167028993.

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

It is not a de Polignac number, because 3998207613 - 2⁴ = 3998207597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998207683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3406 + ... + 89487.

It is an arithmetic number, because the mean of its divisors is an integer number (666421556).

Almost surely, 2^3998207613 is an apocalyptic number.

It is an amenable number.

3998207613 is a deficient number, since it is larger than the sum of its proper divisors (1333164835).

3998207613 is a wasteful number, since it uses less digits than its factorization.

3998207613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107243.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 3998207613 is about 63231.3815522008. The cubic root of 3998207613 is about 1587.1639134602.

The spelling of 3998207613 in words is "three billion, nine hundred ninety-eight million, two hundred seven thousand, six hundred thirteen".