3998472949 has 8 divisors (see below), whose sum is σ = 4112238240. Its totient is φ = 3885652176.

The previous prime is 3998472937. The next prime is 3998472979. The reversal of 3998472949 is 9492748993.

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

It is a cyclic number.

It is not a de Polignac number, because 3998472949 - 2²⁷ = 3864255221 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 (3998472979) 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, 227539 + ... + 244480.

It is an arithmetic number, because the mean of its divisors is an integer number (514029780).

Almost surely, 2^3998472949 is an apocalyptic number.

It is an amenable number.

3998472949 is a deficient number, since it is larger than the sum of its proper divisors (113765291).

3998472949 is a wasteful number, since it uses less digits than its factorization.

3998472949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472259.

The product of its digits is 35271936, while the sum is 64.

The square root of 3998472949 is about 63233.4796527915. The cubic root of 3998472949 is about 1587.1990227266.

The spelling of 3998472949 in words is "three billion, nine hundred ninety-eight million, four hundred seventy-two thousand, nine hundred forty-nine".