7102489 has 2 divisors, whose sum is σ = 7102490. Its totient is φ = 7102488.

The previous prime is 7102463. The next prime is 7102519. The reversal of 7102489 is 9842017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4752400 + 2350089 = 2180^2 + 1533^2 .

It is an emirp because it is prime and its reverse (9842017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7102489 - 2⁵ = 7102457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7102489.

It is not a weakly prime, because it can be changed into another prime (7103489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3551244 + 3551245.

It is an arithmetic number, because the mean of its divisors is an integer number (3551245).

Almost surely, 2^7102489 is an apocalyptic number.

It is an amenable number.

7102489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7102489 is an equidigital number, since it uses as much as digits as its factorization.

7102489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7102489 is about 2665.0495304966. The cubic root of 7102489 is about 192.2221910497. Note that the first 3 decimals are identical.

The spelling of 7102489 in words is "seven million, one hundred two thousand, four hundred eighty-nine".