47917747 has 8 divisors (see below), whose sum is σ = 50839056. Its totient is φ = 45007872.

The previous prime is 47917741. The next prime is 47917801. The reversal of 47917747 is 74771974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47917747 - 2⁷ = 47917619 is a prime.

It is a super-2 number, since 2×47917747² = 4592220955112018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47917697 and 47917706.

It is not an unprimeable number, because it can be changed into a prime (47917741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6723 + ... + 11875.

It is an arithmetic number, because the mean of its divisors is an integer number (6354882).

Almost surely, 2^47917747 is an apocalyptic number.

47917747 is a deficient number, since it is larger than the sum of its proper divisors (2921309).

47917747 is a wasteful number, since it uses less digits than its factorization.

47917747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717.

The product of its digits is 345744, while the sum is 46.

The square root of 47917747 is about 6922.2645861019. The cubic root of 47917747 is about 363.2164115174.

The spelling of 47917747 in words is "forty-seven million, nine hundred seventeen thousand, seven hundred forty-seven".