47868479 has 2 divisors, whose sum is σ = 47868480. Its totient is φ = 47868478.

The previous prime is 47868463. The next prime is 47868493. The reversal of 47868479 is 97486874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47868479 - 2⁴ = 47868463 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47868479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47868409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23934239 + 23934240.

It is an arithmetic number, because the mean of its divisors is an integer number (23934240).

Almost surely, 2^47868479 is an apocalyptic number.

47868479 is a deficient number, since it is larger than the sum of its proper divisors (1).

47868479 is an equidigital number, since it uses as much as digits as its factorization.

47868479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 53.

The square root of 47868479 is about 6918.7050088871. The cubic root of 47868479 is about 363.0918850538.

The spelling of 47868479 in words is "forty-seven million, eight hundred sixty-eight thousand, four hundred seventy-nine".