7297879665 has 32 divisors (see below), whose sum is σ = 12000675456. Its totient is φ = 3784803840.

The previous prime is 7297879657. The next prime is 7297879717. The reversal of 7297879665 is 5669787927.

7297879665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7297879665 - 2³ = 7297879657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7297879596 and 7297879605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169479 + ... + 208131.

It is an arithmetic number, because the mean of its divisors is an integer number (375021108).

Almost surely, 2^7297879665 is an apocalyptic number.

It is an amenable number.

7297879665 is a deficient number, since it is larger than the sum of its proper divisors (4702795791).

7297879665 is a wasteful number, since it uses less digits than its factorization.

7297879665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39009.

The product of its digits is 80015040, while the sum is 66.

The square root of 7297879665 is about 85427.6282299819. The cubic root of 7297879665 is about 1939.6895794992.

The spelling of 7297879665 in words is "seven billion, two hundred ninety-seven million, eight hundred seventy-nine thousand, six hundred sixty-five".