47400513 has 4 divisors (see below), whose sum is σ = 63200688. Its totient is φ = 31600340.

The previous prime is 47400511. The next prime is 47400533. The reversal of 47400513 is 31500474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47400513 - 2¹ = 47400511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47400511) 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 in 3 ways as a sum of consecutive naturals, for example, 7900083 + ... + 7900088.

It is an arithmetic number, because the mean of its divisors is an integer number (15800172).

Almost surely, 2^47400513 is an apocalyptic number.

It is an amenable number.

47400513 is a deficient number, since it is larger than the sum of its proper divisors (15800175).

47400513 is a wasteful number, since it uses less digits than its factorization.

47400513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15800174.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 47400513 is about 6884.8030472919. The cubic root of 47400513 is about 361.9048033716.

Adding to 47400513 its reverse (31500474), we get a palindrome (78900987).

The spelling of 47400513 in words is "forty-seven million, four hundred thousand, five hundred thirteen".