7720631227 has 4 divisors (see below), whose sum is σ = 7986859920. Its totient is φ = 7454402536.

The previous prime is 7720631221. The next prime is 7720631231. The reversal of 7720631227 is 7221360277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7720631227 - 2¹⁹ = 7720106939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7720631221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133114303 + ... + 133114360.

It is an arithmetic number, because the mean of its divisors is an integer number (1996714980).

Almost surely, 2^7720631227 is an apocalyptic number.

7720631227 is a deficient number, since it is larger than the sum of its proper divisors (266228693).

7720631227 is a wasteful number, since it uses less digits than its factorization.

7720631227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266228692.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 7720631227 is about 87867.1225601476. The cubic root of 7720631227 is about 1976.4428895847.

The spelling of 7720631227 in words is "seven billion, seven hundred twenty million, six hundred thirty-one thousand, two hundred twenty-seven".