7270747621 has 2 divisors, whose sum is σ = 7270747622. Its totient is φ = 7270747620.

The previous prime is 7270747597. The next prime is 7270747681. The reversal of 7270747621 is 1267470727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5621250625 + 1649496996 = 74975^2 + 40614^2 .

It is an emirp because it is prime and its reverse (1267470727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7270747621 - 2²⁷ = 7136529893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7270747681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3635373810 + 3635373811.

It is an arithmetic number, because the mean of its divisors is an integer number (3635373811).

Almost surely, 2^7270747621 is an apocalyptic number.

It is an amenable number.

7270747621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7270747621 is an equidigital number, since it uses as much as digits as its factorization.

7270747621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230496, while the sum is 43.

The square root of 7270747621 is about 85268.6790152164. The cubic root of 7270747621 is about 1937.2828029077.

The spelling of 7270747621 in words is "seven billion, two hundred seventy million, seven hundred forty-seven thousand, six hundred twenty-one".