47320589 has 2 divisors, whose sum is σ = 47320590. Its totient is φ = 47320588.

The previous prime is 47320549. The next prime is 47320627. The reversal of 47320589 is 98502374.

It is an a-pointer prime, because the next prime (47320627) can be obtained adding 47320589 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33756100 + 13564489 = 5810^2 + 3683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47320589 is a prime.

It is equal to p_2849816 and since 47320589 and 2849816 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47320549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23660294 + 23660295.

It is an arithmetic number, because the mean of its divisors is an integer number (23660295).

Almost surely, 2^47320589 is an apocalyptic number.

It is an amenable number.

47320589 is a deficient number, since it is larger than the sum of its proper divisors (1).

47320589 is an equidigital number, since it uses as much as digits as its factorization.

47320589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 47320589 is about 6878.9962203798. The cubic root of 47320589 is about 361.7012812993.

The spelling of 47320589 in words is "forty-seven million, three hundred twenty thousand, five hundred eighty-nine".