3988007 has 2 divisors, whose sum is σ = 3988008.
Its totient is φ = 3988006.
The previous prime is 3988003. The next prime is 3988021. The reversal of 3988007 is 7008893.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 3988007 - 22 = 3988003 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3988003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994003 + 1994004.
It is an arithmetic number, because the mean of its divisors is an integer number (1994004).
Almost surely, 23988007 is an apocalyptic number.
3988007 is a deficient number, since it is larger than the sum of its proper divisors (1).
3988007 is an equidigital number, since it uses as much as digits as its factorization.
3988007 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 3988007 is about 1996.9994992488.
Note that the first 3 decimals coincide.
The cubic root of 3988007 is about 158.5812988704.
The spelling of 3988007 in words is "three million, nine hundred eighty-eight thousand, seven".