3982902431 has 4 divisors (see below), whose sum is σ = 3988928664. Its totient is φ = 3976876200.

The previous prime is 3982902397. The next prime is 3982902449. The reversal of 3982902431 is 1342092893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1342092893 = 41 ⋅32733973.

It is a cyclic number.

It is not a de Polignac number, because 3982902431 - 2⁶ = 3982902367 is a prime.

It is a super-2 number, since 2×3982902431² = 31727023549731419522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3982902031) 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, 3012125 + ... + 3013446.

It is an arithmetic number, because the mean of its divisors is an integer number (997232166).

Almost surely, 2^3982902431 is an apocalyptic number.

3982902431 is a deficient number, since it is larger than the sum of its proper divisors (6026233).

3982902431 is an equidigital number, since it uses as much as digits as its factorization.

3982902431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026232.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 3982902431 is about 63110.2403021887. The cubic root of 3982902431 is about 1585.1360968761.

The spelling of 3982902431 in words is "three billion, nine hundred eighty-two million, nine hundred two thousand, four hundred thirty-one".