47876009 has 2 divisors, whose sum is σ = 47876010. Its totient is φ = 47876008.

The previous prime is 47875981. The next prime is 47876011. The reversal of 47876009 is 90067874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45225625 + 2650384 = 6725^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 47876009 - 2²⁰ = 46827433 is a prime.

It is a super-2 number, since 2×47876009² = 4584224475536162, which contains 22 as substring.

Together with 47876011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47876089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23938004 + 23938005.

It is an arithmetic number, because the mean of its divisors is an integer number (23938005).

Almost surely, 2^47876009 is an apocalyptic number.

It is an amenable number.

47876009 is a deficient number, since it is larger than the sum of its proper divisors (1).

47876009 is an equidigital number, since it uses as much as digits as its factorization.

47876009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 47876009 is about 6919.2491644686. The cubic root of 47876009 is about 363.1109229022.

The spelling of 47876009 in words is "forty-seven million, eight hundred seventy-six thousand, nine".