7276488221 has 2 divisors, whose sum is σ = 7276488222. Its totient is φ = 7276488220.

The previous prime is 7276488211. The next prime is 7276488259. The reversal of 7276488221 is 1228846727.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3876432121 + 3400056100 = 62261^2 + 58310^2 .

It is a cyclic number.

It is not a de Polignac number, because 7276488221 - 2²⁶ = 7209379357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7276488211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3638244110 + 3638244111.

It is an arithmetic number, because the mean of its divisors is an integer number (3638244111).

Almost surely, 2^7276488221 is an apocalyptic number.

It is an amenable number.

7276488221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7276488221 is an equidigital number, since it uses as much as digits as its factorization.

7276488221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 47.

The square root of 7276488221 is about 85302.3342060462. The cubic root of 7276488221 is about 1937.7925276579.

The spelling of 7276488221 in words is "seven billion, two hundred seventy-six million, four hundred eighty-eight thousand, two hundred twenty-one".