47520017 has 4 divisors (see below), whose sum is σ = 47804736. Its totient is φ = 47235300.

The previous prime is 47520013. The next prime is 47520023. The reversal of 47520017 is 71002574.

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 47520017 - 2² = 47520013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47520013) 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, 142109 + ... + 142442.

It is an arithmetic number, because the mean of its divisors is an integer number (11951184).

Almost surely, 2^47520017 is an apocalyptic number.

It is an amenable number.

47520017 is a deficient number, since it is larger than the sum of its proper divisors (284719).

47520017 is a wasteful number, since it uses less digits than its factorization.

47520017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284718.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 47520017 is about 6893.4764088956. The cubic root of 47520017 is about 362.2086874005.

The spelling of 47520017 in words is "forty-seven million, five hundred twenty thousand, seventeen".