7948208997 has 28 divisors (see below), whose sum is σ = 11932477740. Its totient is φ = 5291863488.

The previous prime is 7948208993. The next prime is 7948208999. The reversal of 7948208997 is 7998028497.

7948208997 is a `hidden beast` number, since 79 + 482 + 0 + 89 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6292614276 + 1655594721 = 79326^2 + 40689^2 .

It is not a de Polignac number, because 7948208997 - 2² = 7948208993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948208993) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 583023 + ... + 596499.

Almost surely, 2^7948208997 is an apocalyptic number.

It is an amenable number.

7948208997 is a deficient number, since it is larger than the sum of its proper divisors (3984268743).

7948208997 is an equidigital number, since it uses as much as digits as its factorization.

7948208997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304 (or 14289 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The square root of 7948208997 is about 89152.7284888129. The cubic root of 7948208997 is about 1995.6747358715.

The spelling of 7948208997 in words is "seven billion, nine hundred forty-eight million, two hundred eight thousand, nine hundred ninety-seven".