47425891 has 2 divisors, whose sum is σ = 47425892. Its totient is φ = 47425890.

The previous prime is 47425841. The next prime is 47425901. The reversal of 47425891 is 19852474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47425891 - 2²³ = 39037283 is a prime.

It is not a weakly prime, because it can be changed into another prime (47425841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23712945 + 23712946.

It is an arithmetic number, because the mean of its divisors is an integer number (23712946).

Almost surely, 2^47425891 is an apocalyptic number.

47425891 is a deficient number, since it is larger than the sum of its proper divisors (1).

47425891 is an equidigital number, since it uses as much as digits as its factorization.

47425891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 47425891 is about 6886.6458454025. The cubic root of 47425891 is about 361.9693791952.

The spelling of 47425891 in words is "forty-seven million, four hundred twenty-five thousand, eight hundred ninety-one".