7249387 has 2 divisors, whose sum is σ = 7249388. Its totient is φ = 7249386.

The previous prime is 7249379. The next prime is 7249397. The reversal of 7249387 is 7839427.

It is a weak prime.

It is an emirp because it is prime and its reverse (7839427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7249387 - 2³ = 7249379 is a prime.

It is a super-2 number, since 2×7249387² = 105107223751538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7249337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3624693 + 3624694.

It is an arithmetic number, because the mean of its divisors is an integer number (3624694).

Almost surely, 2^7249387 is an apocalyptic number.

7249387 is a deficient number, since it is larger than the sum of its proper divisors (1).

7249387 is an equidigital number, since it uses as much as digits as its factorization.

7249387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 7249387 is about 2692.4685699187. The cubic root of 7249387 is about 193.5383770561.

Adding to 7249387 its sum of digits (40), we get a palindrome (7249427).

The spelling of 7249387 in words is "seven million, two hundred forty-nine thousand, three hundred eighty-seven".