47878099 has 2 divisors, whose sum is σ = 47878100. Its totient is φ = 47878098.

The previous prime is 47878093. The next prime is 47878121. The reversal of 47878099 is 99087874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47878099 - 2³ = 47878091 is a prime.

It is not a weakly prime, because it can be changed into another prime (47878091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23939049 + 23939050.

It is an arithmetic number, because the mean of its divisors is an integer number (23939050).

Almost surely, 2^47878099 is an apocalyptic number.

47878099 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878099 is an equidigital number, since it uses as much as digits as its factorization.

47878099 is an evil number, because the sum of its binary digits is even.

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

The square root of 47878099 is about 6919.4001907680. The cubic root of 47878099 is about 363.1162066257.

The spelling of 47878099 in words is "forty-seven million, eight hundred seventy-eight thousand, ninety-nine".