7620727445 has 16 divisors (see below), whose sum is σ = 10016699760. Its totient is φ = 5540097024.

The previous prime is 7620727409. The next prime is 7620727453. The reversal of 7620727445 is 5447270267.

It can be written as a sum of positive squares in 8 ways, for example, as 534118321 + 7086609124 = 23111^2 + 84182^2 .

It is a cyclic number.

It is not a de Polignac number, because 7620727445 - 2⁸ = 7620727189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7620727396 and 7620727405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543322 + ... + 1548251.

It is an arithmetic number, because the mean of its divisors is an integer number (626043735).

Almost surely, 2^7620727445 is an apocalyptic number.

It is an amenable number.

7620727445 is a deficient number, since it is larger than the sum of its proper divisors (2395972315).

7620727445 is a wasteful number, since it uses less digits than its factorization.

7620727445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091624.

The product of its (nonzero) digits is 658560, while the sum is 44.

The square root of 7620727445 is about 87296.7779760513. Note that the first 3 decimals coincide. The cubic root of 7620727445 is about 1967.8808966198.

The spelling of 7620727445 in words is "seven billion, six hundred twenty million, seven hundred twenty-seven thousand, four hundred forty-five".