7289142847 has 4 divisors (see below), whose sum is σ = 8330448976. Its totient is φ = 6247836720.

The previous prime is 7289142827. The next prime is 7289142923. The reversal of 7289142847 is 7482419827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7482419827 = 13007 ⋅575261.

It is a cyclic number.

It is not a de Polignac number, because 7289142847 - 2⁷ = 7289142719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7289142794 and 7289142803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289142827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520653054 + ... + 520653067.

It is an arithmetic number, because the mean of its divisors is an integer number (2082612244).

Almost surely, 2^7289142847 is an apocalyptic number.

7289142847 is a deficient number, since it is larger than the sum of its proper divisors (1041306129).

7289142847 is a wasteful number, since it uses less digits than its factorization.

7289142847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041306128.

The product of its digits is 1806336, while the sum is 52.

The square root of 7289142847 is about 85376.4771292421. The cubic root of 7289142847 is about 1938.9152229818.

The spelling of 7289142847 in words is "seven billion, two hundred eighty-nine million, one hundred forty-two thousand, eight hundred forty-seven".