7890479017 has 8 divisors (see below), whose sum is σ = 7918718976. Its totient is φ = 7862260752.

The previous prime is 7890478979. The next prime is 7890479033. The reversal of 7890479017 is 7109740987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7890479017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7890479417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1132338 + ... + 1139284.

It is an arithmetic number, because the mean of its divisors is an integer number (989839872).

Almost surely, 2^7890479017 is an apocalyptic number.

It is an amenable number.

7890479017 is a deficient number, since it is larger than the sum of its proper divisors (28239959).

7890479017 is a wasteful number, since it uses less digits than its factorization.

7890479017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10847.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 7890479017 is about 88828.3683121558. The cubic root of 7890479017 is about 1990.8312829616.

The spelling of 7890479017 in words is "seven billion, eight hundred ninety million, four hundred seventy-nine thousand, seventeen".