47819867 has 2 divisors, whose sum is σ = 47819868. Its totient is φ = 47819866.

The previous prime is 47819839. The next prime is 47819909. The reversal of 47819867 is 76891874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47819867 - 2¹⁰ = 47818843 is a prime.

It is not a weakly prime, because it can be changed into another prime (47819467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23909933 + 23909934.

It is an arithmetic number, because the mean of its divisors is an integer number (23909934).

Almost surely, 2^47819867 is an apocalyptic number.

47819867 is a deficient number, since it is larger than the sum of its proper divisors (1).

47819867 is an equidigital number, since it uses as much as digits as its factorization.

47819867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 50.

The square root of 47819867 is about 6915.1910313454. The cubic root of 47819867 is about 362.9689328774.

The spelling of 47819867 in words is "forty-seven million, eight hundred nineteen thousand, eight hundred sixty-seven".