7007989 has 2 divisors, whose sum is σ = 7007990. Its totient is φ = 7007988.

The previous prime is 7007983. The next prime is 7007993. The reversal of 7007989 is 9897007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 3359889 = 1910^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 7007989 - 2⁹ = 7007477 is a prime.

It is a super-2 number, since 2×7007989² = 98223819648242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7007983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503994 + 3503995.

It is an arithmetic number, because the mean of its divisors is an integer number (3503995).

Almost surely, 2^7007989 is an apocalyptic number.

It is an amenable number.

7007989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7007989 is an equidigital number, since it uses as much as digits as its factorization.

7007989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 7007989 is about 2647.2606596253. The cubic root of 7007989 is about 191.3658639774.

The spelling of 7007989 in words is "seven million, seven thousand, nine hundred eighty-nine".