47391959 has 2 divisors, whose sum is σ = 47391960. Its totient is φ = 47391958.

The previous prime is 47391943. The next prime is 47391961. The reversal of 47391959 is 95919374.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47391959 - 2⁴ = 47391943 is a prime.

Together with 47391961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47391919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23695979 + 23695980.

It is an arithmetic number, because the mean of its divisors is an integer number (23695980).

Almost surely, 2^47391959 is an apocalyptic number.

47391959 is a deficient number, since it is larger than the sum of its proper divisors (1).

47391959 is an equidigital number, since it uses as much as digits as its factorization.

47391959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 47.

The square root of 47391959 is about 6884.1817959726. The cubic root of 47391959 is about 361.8830320185.

The spelling of 47391959 in words is "forty-seven million, three hundred ninety-one thousand, nine hundred fifty-nine".