47717513 has 4 divisors (see below), whose sum is σ = 47964948. Its totient is φ = 47470080.

The previous prime is 47717507. The next prime is 47717519. The reversal of 47717513 is 31571774.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (47717507) and next prime (47717519).

It can be written as a sum of positive squares in 2 ways, for example, as 32569849 + 15147664 = 5707^2 + 3892^2 .

It is a cyclic number.

It is not a de Polignac number, because 47717513 - 2⁴ = 47717497 is a prime.

It is a super-2 number, since 2×47717513² = 4553922093810338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47717519) 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, 123428 + ... + 123813.

It is an arithmetic number, because the mean of its divisors is an integer number (11991237).

Almost surely, 2^47717513 is an apocalyptic number.

It is an amenable number.

47717513 is a deficient number, since it is larger than the sum of its proper divisors (247435).

47717513 is a wasteful number, since it uses less digits than its factorization.

47717513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247434.

The product of its digits is 20580, while the sum is 35.

The square root of 47717513 is about 6907.7864037621. The cubic root of 47717513 is about 362.7097807552.

The spelling of 47717513 in words is "forty-seven million, seven hundred seventeen thousand, five hundred thirteen".