3981037107 has 4 divisors (see below), whose sum is σ = 5308049480. Its totient is φ = 2654024736.

The previous prime is 3981037103. The next prime is 3981037129. The reversal of 3981037107 is 7017301893.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3981037107 - 2² = 3981037103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3981037103) 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, 663506182 + ... + 663506187.

It is an arithmetic number, because the mean of its divisors is an integer number (1327012370).

Almost surely, 2^3981037107 is an apocalyptic number.

3981037107 is a deficient number, since it is larger than the sum of its proper divisors (1327012373).

3981037107 is a wasteful number, since it uses less digits than its factorization.

3981037107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327012372.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 3981037107 is about 63095.4602725109. The cubic root of 3981037107 is about 1584.8886011395. Note that the first 3 decimals are identical.

The spelling of 3981037107 in words is "three billion, nine hundred eighty-one million, thirty-seven thousand, one hundred seven".