3981607 has 8 divisors (see below), whose sum is σ = 4673696. Its totient is φ = 3320352.

The previous prime is 3981589. The next prime is 3981617. The reversal of 3981607 is 7061893.

3981607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3981607 - 2⁷ = 3981479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7428 + ... + 7945.

It is an arithmetic number, because the mean of its divisors is an integer number (584212).

Almost surely, 2^3981607 is an apocalyptic number.

3981607 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3981607 is a deficient number, since it is larger than the sum of its proper divisors (692089).

3981607 is a wasteful number, since it uses less digits than its factorization.

3981607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15417.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3981607 is about 1995.3964518361. The cubic root of 3981607 is about 158.4964224133.

The spelling of 3981607 in words is "three million, nine hundred eighty-one thousand, six hundred seven".