3999504499 has 4 divisors (see below), whose sum is σ = 4059198664. Its totient is φ = 3939810336.

The previous prime is 3999504437. The next prime is 3999504559. The reversal of 3999504499 is 9944059993.

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

It is a cyclic number.

It is not a de Polignac number, because 3999504499 - 2¹⁹ = 3998980211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999504599) 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, 29846982 + ... + 29847115.

It is an arithmetic number, because the mean of its divisors is an integer number (1014799666).

Almost surely, 2^3999504499 is an apocalyptic number.

3999504499 is a deficient number, since it is larger than the sum of its proper divisors (59694165).

3999504499 is an equidigital number, since it uses as much as digits as its factorization.

3999504499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59694164.

The product of its (nonzero) digits is 14171760, while the sum is 61.

The square root of 3999504499 is about 63241.6358026894. The cubic root of 3999504499 is about 1587.3355026941.

The spelling of 3999504499 in words is "three billion, nine hundred ninety-nine million, five hundred four thousand, four hundred ninety-nine".