7587641 has 2 divisors, whose sum is σ = 7587642. Its totient is φ = 7587640.

The previous prime is 7587637. The next prime is 7587659. The reversal of 7587641 is 1467857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 319225 = 2696^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 7587641 - 2² = 7587637 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7587595 and 7587604.

It is not a weakly prime, because it can be changed into another prime (7587941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3793820 + 3793821.

It is an arithmetic number, because the mean of its divisors is an integer number (3793821).

Almost surely, 2^7587641 is an apocalyptic number.

It is an amenable number.

7587641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7587641 is an equidigital number, since it uses as much as digits as its factorization.

7587641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 7587641 is about 2754.5672981432. The cubic root of 7587641 is about 196.5028822468.

It can be divided in two parts, 7587 and 641, that added together give a palindrome (8228).

The spelling of 7587641 in words is "seven million, five hundred eighty-seven thousand, six hundred forty-one".