3989862417 has 12 divisors (see below), whose sum is σ = 5561171504. Its totient is φ = 2544259080.

The previous prime is 3989862391. The next prime is 3989862431. The reversal of 3989862417 is 7142689893.

It is not a de Polignac number, because 3989862417 - 2¹² = 3989858321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989862467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255459 + ... + 1258632.

Almost surely, 2^3989862417 is an apocalyptic number.

It is an amenable number.

3989862417 is a deficient number, since it is larger than the sum of its proper divisors (1571309087).

3989862417 is a wasteful number, since it uses less digits than its factorization.

3989862417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514140 (or 2514117 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 3989862417 is about 63165.3577287424. The cubic root of 3989862417 is about 1586.0588833067.

The spelling of 3989862417 in words is "three billion, nine hundred eighty-nine million, eight hundred sixty-two thousand, four hundred seventeen".