3998489577 has 8 divisors (see below), whose sum is σ = 5338328160. Its totient is φ = 2662155360.

The previous prime is 3998489557. The next prime is 3998489581. The reversal of 3998489577 is 7759848993.

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

It is not a de Polignac number, because 3998489577 - 2¹² = 3998485481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3998489507) 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, 873427 + ... + 877992.

It is an arithmetic number, because the mean of its divisors is an integer number (667291020).

Almost surely, 2^3998489577 is an apocalyptic number.

It is an amenable number.

3998489577 is a deficient number, since it is larger than the sum of its proper divisors (1339838583).

3998489577 is a wasteful number, since it uses less digits than its factorization.

3998489577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752183.

The product of its digits is 137168640, while the sum is 69.

The square root of 3998489577 is about 63233.6111336368. The cubic root of 3998489577 is about 1587.2012228923.

The spelling of 3998489577 in words is "three billion, nine hundred ninety-eight million, four hundred eighty-nine thousand, five hundred seventy-seven".