7487261 has 2 divisors, whose sum is σ = 7487262. Its totient is φ = 7487260.

The previous prime is 7487243. The next prime is 7487269. The reversal of 7487261 is 1627847.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7458361 + 28900 = 2731^2 + 170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7487261 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7487269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743630 + 3743631.

It is an arithmetic number, because the mean of its divisors is an integer number (3743631).

Almost surely, 2^7487261 is an apocalyptic number.

It is an amenable number.

7487261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487261 is an equidigital number, since it uses as much as digits as its factorization.

7487261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 35.

The square root of 7487261 is about 2736.2859865153. The cubic root of 7487261 is about 195.6324936991.

The spelling of 7487261 in words is "seven million, four hundred eighty-seven thousand, two hundred sixty-one".