1988007 has 16 divisors (see below), whose sum is σ = 3055872. Its totient is φ = 1126080.

The previous prime is 1987991. The next prime is 1988011. The reversal of 1988007 is 7008891.

It is not a de Polignac number, because 1988007 - 2⁴ = 1987991 is a prime.

1988007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988057) 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 in 15 ways as a sum of consecutive naturals, for example, 2532 + ... + 3222.

It is an arithmetic number, because the mean of its divisors is an integer number (190992).

2^1988007 is an apocalyptic number.

1988007 is a deficient number, since it is larger than the sum of its proper divisors (1067865).

1988007 is a wasteful number, since it uses less digits than its factorization.

1988007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1988007 is about 1409.9670208909. The cubic root of 1988007 is about 125.7397627060.

The spelling of 1988007 in words is "one million, nine hundred eighty-eight thousand, seven".