3977440086 has 24 divisors (see below), whose sum is σ = 7990401384. Its totient is φ = 1319919360.

The previous prime is 3977440073. The next prime is 3977440091. The reversal of 3977440086 is 6800447793.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308326 + ... + 320966.

It is an arithmetic number, because the mean of its divisors is an integer number (332933391).

Almost surely, 2^3977440086 is an apocalyptic number.

3977440086 is an abundant number, since it is smaller than the sum of its proper divisors (4012961298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3977440086 is a wasteful number, since it uses less digits than its factorization.

3977440086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13104 (or 12875 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 3977440086 is about 63066.9492365058. The cubic root of 3977440086 is about 1584.4111212536.

The spelling of 3977440086 in words is "three billion, nine hundred seventy-seven million, four hundred forty thousand, eighty-six".