7601621 has 2 divisors, whose sum is σ = 7601622. Its totient is φ = 7601620.

The previous prime is 7601597. The next prime is 7601641. The reversal of 7601621 is 1261067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 579121 = 2650^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 7601621 - 2¹⁰ = 7600597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7601641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3800810 + 3800811.

It is an arithmetic number, because the mean of its divisors is an integer number (3800811).

Almost surely, 2^7601621 is an apocalyptic number.

It is an amenable number.

7601621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7601621 is an equidigital number, since it uses as much as digits as its factorization.

7601621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7601621 is about 2757.1037339933. The cubic root of 7601621 is about 196.6234917512.

Adding to 7601621 its reverse (1261067), we get a palindrome (8862688).

The spelling of 7601621 in words is "seven million, six hundred one thousand, six hundred twenty-one".