7124869 has 2 divisors, whose sum is σ = 7124870. Its totient is φ = 7124868.

The previous prime is 7124851. The next prime is 7124879. The reversal of 7124869 is 9684217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4251844 + 2873025 = 2062^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 7124869 - 2⁹ = 7124357 is a prime.

It is a super-2 number, since 2×7124869² = 101527516534322, which contains 22 as substring.

7124869 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7124839) 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, 3562434 + 3562435.

It is an arithmetic number, because the mean of its divisors is an integer number (3562435).

Almost surely, 2^7124869 is an apocalyptic number.

It is an amenable number.

7124869 is a deficient number, since it is larger than the sum of its proper divisors (1).

7124869 is an equidigital number, since it uses as much as digits as its factorization.

7124869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 7124869 is about 2669.2450243468. The cubic root of 7124869 is about 192.4238772498.

It can be divided in two parts, 71248 and 69, that added together give a palindrome (71317).

The spelling of 7124869 in words is "seven million, one hundred twenty-four thousand, eight hundred sixty-nine".