47884979 has 2 divisors, whose sum is σ = 47884980. Its totient is φ = 47884978.

The previous prime is 47884957. The next prime is 47885021. The reversal of 47884979 is 97948874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47884979 - 2⁸ = 47884723 is a prime.

It is not a weakly prime, because it can be changed into another prime (47884909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23942489 + 23942490.

It is an arithmetic number, because the mean of its divisors is an integer number (23942490).

Almost surely, 2^47884979 is an apocalyptic number.

47884979 is a deficient number, since it is larger than the sum of its proper divisors (1).

47884979 is an equidigital number, since it uses as much as digits as its factorization.

47884979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The square root of 47884979 is about 6919.8973258279. The cubic root of 47884979 is about 363.1335988496.

The spelling of 47884979 in words is "forty-seven million, eight hundred eighty-four thousand, nine hundred seventy-nine".