47899811 has 2 divisors, whose sum is σ = 47899812. Its totient is φ = 47899810.

The previous prime is 47899783. The next prime is 47899837. The reversal of 47899811 is 11899874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47899811 - 2¹⁰ = 47898787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47899871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23949905 + 23949906.

It is an arithmetic number, because the mean of its divisors is an integer number (23949906).

Almost surely, 2^47899811 is an apocalyptic number.

47899811 is a deficient number, since it is larger than the sum of its proper divisors (1).

47899811 is an equidigital number, since it uses as much as digits as its factorization.

47899811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 47.

The square root of 47899811 is about 6920.9689350553. The cubic root of 47899811 is about 363.1710875823.

The spelling of 47899811 in words is "forty-seven million, eight hundred ninety-nine thousand, eight hundred eleven".