7287953 has 2 divisors, whose sum is σ = 7287954. Its totient is φ = 7287952.

The previous prime is 7287947. The next prime is 7287979. The reversal of 7287953 is 3597827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5121169 + 2166784 = 2263^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 7287953 - 2¹⁴ = 7271569 is a prime.

It is a super-2 number, since 2×7287953² = 106228517860418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7287953.

It is not a weakly prime, because it can be changed into another prime (7287983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3643976 + 3643977.

It is an arithmetic number, because the mean of its divisors is an integer number (3643977).

Almost surely, 2^7287953 is an apocalyptic number.

It is an amenable number.

7287953 is a deficient number, since it is larger than the sum of its proper divisors (1).

7287953 is an equidigital number, since it uses as much as digits as its factorization.

7287953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 7287953 is about 2699.6208993116. The cubic root of 7287953 is about 193.8809717298.

The spelling of 7287953 in words is "seven million, two hundred eighty-seven thousand, nine hundred fifty-three".