7649737 has 2 divisors, whose sum is σ = 7649738. Its totient is φ = 7649736.

The previous prime is 7649693. The next prime is 7649749. The reversal of 7649737 is 7379467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6370576 + 1279161 = 2524^2 + 1131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7649737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7649693 and 7649702.

It is not a weakly prime, because it can be changed into another prime (7649797) 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, 3824868 + 3824869.

It is an arithmetic number, because the mean of its divisors is an integer number (3824869).

Almost surely, 2^7649737 is an apocalyptic number.

It is an amenable number.

7649737 is a deficient number, since it is larger than the sum of its proper divisors (1).

7649737 is an equidigital number, since it uses as much as digits as its factorization.

7649737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 43.

The square root of 7649737 is about 2765.8157928539. The cubic root of 7649737 is about 197.0374755850.

It can be divided in two parts, 764 and 9737, that added together give a palindrome (10501).

The spelling of 7649737 in words is "seven million, six hundred forty-nine thousand, seven hundred thirty-seven".