3980087971 has 4 divisors (see below), whose sum is σ = 3981187744. Its totient is φ = 3978988200.

The previous prime is 3980087963. The next prime is 3980087983. The reversal of 3980087971 is 1797800893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1797800893 = 7 ⋅256828699.

It is a cyclic number.

It is not a de Polignac number, because 3980087971 - 2³ = 3980087963 is a prime.

It is a super-2 number, since 2×3980087971² = 31682200513797793682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3980087941) 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, 544440 + ... + 551701.

It is an arithmetic number, because the mean of its divisors is an integer number (995296936).

Almost surely, 2^3980087971 is an apocalyptic number.

3980087971 is a deficient number, since it is larger than the sum of its proper divisors (1099773).

3980087971 is a wasteful number, since it uses less digits than its factorization.

3980087971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099772.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 3980087971 is about 63087.9383955444. The cubic root of 3980087971 is about 1584.7626377829.

The spelling of 3980087971 in words is "three billion, nine hundred eighty million, eighty-seven thousand, nine hundred seventy-one".