47012817 has 4 divisors (see below), whose sum is σ = 62683760. Its totient is φ = 31341876.

The previous prime is 47012813. The next prime is 47012827. The reversal of 47012817 is 71821074.

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 not a de Polignac number, because 47012817 - 2² = 47012813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47012813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7835467 + ... + 7835472.

It is an arithmetic number, because the mean of its divisors is an integer number (15670940).

Almost surely, 2^47012817 is an apocalyptic number.

It is an amenable number.

47012817 is a deficient number, since it is larger than the sum of its proper divisors (15670943).

47012817 is a wasteful number, since it uses less digits than its factorization.

47012817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15670942.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 47012817 is about 6856.5893124789. The cubic root of 47012817 is about 360.9154095174.

The spelling of 47012817 in words is "forty-seven million, twelve thousand, eight hundred seventeen".