7641253 has 2 divisors, whose sum is σ = 7641254. Its totient is φ = 7641252.

The previous prime is 7641251. The next prime is 7641259. The reversal of 7641253 is 3521467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5026564 + 2614689 = 2242^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 7641253 - 2¹ = 7641251 is a prime.

Together with 7641251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7641251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820626 + 3820627.

It is an arithmetic number, because the mean of its divisors is an integer number (3820627).

Almost surely, 2^7641253 is an apocalyptic number.

It is an amenable number.

7641253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7641253 is an equidigital number, since it uses as much as digits as its factorization.

7641253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 7641253 is about 2764.2816426696. The cubic root of 7641253 is about 196.9646066609.

The spelling of 7641253 in words is "seven million, six hundred forty-one thousand, two hundred fifty-three".