47319641 has 2 divisors, whose sum is σ = 47319642. Its totient is φ = 47319640.

The previous prime is 47319637. The next prime is 47319659. The reversal of 47319641 is 14691374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32535616 + 14784025 = 5704^2 + 3845^2 .

It is a cyclic number.

It is not a de Polignac number, because 47319641 - 2² = 47319637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47319691) 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, 23659820 + 23659821.

It is an arithmetic number, because the mean of its divisors is an integer number (23659821).

Almost surely, 2^47319641 is an apocalyptic number.

It is an amenable number.

47319641 is a deficient number, since it is larger than the sum of its proper divisors (1).

47319641 is an equidigital number, since it uses as much as digits as its factorization.

47319641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 47319641 is about 6878.9273146327. The cubic root of 47319641 is about 361.6988658947.

The spelling of 47319641 in words is "forty-seven million, three hundred nineteen thousand, six hundred forty-one".