47269813 has 2 divisors, whose sum is σ = 47269814. Its totient is φ = 47269812.

The previous prime is 47269811. The next prime is 47269829. The reversal of 47269813 is 31896274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 31684 = 6873^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 47269813 - 2¹ = 47269811 is a prime.

Together with 47269811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47269811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23634906 + 23634907.

It is an arithmetic number, because the mean of its divisors is an integer number (23634907).

Almost surely, 2^47269813 is an apocalyptic number.

It is an amenable number.

47269813 is a deficient number, since it is larger than the sum of its proper divisors (1).

47269813 is an equidigital number, since it uses as much as digits as its factorization.

47269813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 47269813 is about 6875.3045750716. The cubic root of 47269813 is about 361.5718639392.

The spelling of 47269813 in words is "forty-seven million, two hundred sixty-nine thousand, eight hundred thirteen".