47791967 has 2 divisors, whose sum is σ = 47791968. Its totient is φ = 47791966.

The previous prime is 47791951. The next prime is 47792027. The reversal of 47791967 is 76919774.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47791967 - 2⁴ = 47791951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47791927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23895983 + 23895984.

It is an arithmetic number, because the mean of its divisors is an integer number (23895984).

Almost surely, 2^47791967 is an apocalyptic number.

47791967 is a deficient number, since it is larger than the sum of its proper divisors (1).

47791967 is an equidigital number, since it uses as much as digits as its factorization.

47791967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 50.

The square root of 47791967 is about 6913.1734391667. The cubic root of 47791967 is about 362.8983290052.

The spelling of 47791967 in words is "forty-seven million, seven hundred ninety-one thousand, nine hundred sixty-seven".