7043987 has 2 divisors, whose sum is σ = 7043988. Its totient is φ = 7043986.

The previous prime is 7043969. The next prime is 7044017. The reversal of 7043987 is 7893407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7043987 - 2¹⁶ = 6978451 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7043987.

It is not a weakly prime, because it can be changed into another prime (7043947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521993 + 3521994.

It is an arithmetic number, because the mean of its divisors is an integer number (3521994).

Almost surely, 2^7043987 is an apocalyptic number.

7043987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7043987 is an equidigital number, since it uses as much as digits as its factorization.

7043987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 7043987 is about 2654.0510545202. The cubic root of 7043987 is about 191.6929681192.

The spelling of 7043987 in words is "seven million, forty-three thousand, nine hundred eighty-seven".