47868851 has 2 divisors, whose sum is σ = 47868852. Its totient is φ = 47868850.

The previous prime is 47868827. The next prime is 47868859. The reversal of 47868851 is 15886874.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47868851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47868796 and 47868805.

It is not a weakly prime, because it can be changed into another prime (47868859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23934425 + 23934426.

It is an arithmetic number, because the mean of its divisors is an integer number (23934426).

Almost surely, 2^47868851 is an apocalyptic number.

47868851 is a deficient number, since it is larger than the sum of its proper divisors (1).

47868851 is an equidigital number, since it uses as much as digits as its factorization.

47868851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 47.

The square root of 47868851 is about 6918.7318924786. The cubic root of 47868851 is about 363.0928256159.

The spelling of 47868851 in words is "forty-seven million, eight hundred sixty-eight thousand, eight hundred fifty-one".