47349569 has 2 divisors, whose sum is σ = 47349570. Its totient is φ = 47349568.

The previous prime is 47349563. The next prime is 47349613. The reversal of 47349569 is 96594374.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25633969 + 21715600 = 5063^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 47349569 - 2⁴ = 47349553 is a prime.

It is a super-2 number, since 2×47349569² = 4483963368971522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47349563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23674784 + 23674785.

It is an arithmetic number, because the mean of its divisors is an integer number (23674785).

Almost surely, 2^47349569 is an apocalyptic number.

It is an amenable number.

47349569 is a deficient number, since it is larger than the sum of its proper divisors (1).

47349569 is an equidigital number, since it uses as much as digits as its factorization.

47349569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 47349569 is about 6881.1023099501. The cubic root of 47349569 is about 361.7751037395.

The spelling of 47349569 in words is "forty-seven million, three hundred forty-nine thousand, five hundred sixty-nine".