7898479 has 2 divisors, whose sum is σ = 7898480. Its totient is φ = 7898478.

The previous prime is 7898477. The next prime is 7898519. The reversal of 7898479 is 9748987.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7898479 - 2¹ = 7898477 is a prime.

Together with 7898477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7898477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949239 + 3949240.

It is an arithmetic number, because the mean of its divisors is an integer number (3949240).

Almost surely, 2^7898479 is an apocalyptic number.

7898479 is a deficient number, since it is larger than the sum of its proper divisors (1).

7898479 is an equidigital number, since it uses as much as digits as its factorization.

7898479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 52.

The square root of 7898479 is about 2810.4232777288. The cubic root of 7898479 is about 199.1503875710.

The spelling of 7898479 in words is "seven million, eight hundred ninety-eight thousand, four hundred seventy-nine".