7649137 has 2 divisors, whose sum is σ = 7649138. Its totient is φ = 7649136.

The previous prime is 7649113. The next prime is 7649143. The reversal of 7649137 is 7319467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5948721 + 1700416 = 2439^2 + 1304^2 .

It is an emirp because it is prime and its reverse (7319467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7649137 - 2⁷ = 7649009 is a prime.

It is a Chen prime.

7649137 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7649096 and 7649105.

It is not a weakly prime, because it can be changed into another prime (7649177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3824568 + 3824569.

It is an arithmetic number, because the mean of its divisors is an integer number (3824569).

Almost surely, 2^7649137 is an apocalyptic number.

It is an amenable number.

7649137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7649137 is an equidigital number, since it uses as much as digits as its factorization.

7649137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 7649137 is about 2765.7073236335. The cubic root of 7649137 is about 197.0323239667.

The spelling of 7649137 in words is "seven million, six hundred forty-nine thousand, one hundred thirty-seven".