3989007 has 40 divisors (see below), whose sum is σ = 6731472. Its totient is φ = 2352240.

The previous prime is 3989003. The next prime is 3989009. The reversal of 3989007 is 7009893.

It is not a de Polignac number, because 3989007 - 2² = 3989003 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 107793 + ... + 107829.

Almost surely, 2^3989007 is an apocalyptic number.

3989007 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3989007 is the 999-th decagonal number.

3989007 is a deficient number, since it is larger than the sum of its proper divisors (2742465).

3989007 is an equidigital number, since it uses as much as digits as its factorization.

3989007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 3989007 is about 1997.2498591814. The cubic root of 3989007 is about 158.5945526123.

The spelling of 3989007 in words is "three million, nine hundred eighty-nine thousand, seven".