47854217 has 4 divisors (see below), whose sum is σ = 50372880. Its totient is φ = 45335556.

The previous prime is 47854211. The next prime is 47854223. The reversal of 47854217 is 71245874.

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 an interprime number because it is at equal distance from previous prime (47854211) and next prime (47854223).

It is a cyclic number.

It is not a de Polignac number, because 47854217 - 2¹⁰ = 47853193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47854211) 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, 1259303 + ... + 1259340.

It is an arithmetic number, because the mean of its divisors is an integer number (12593220).

Almost surely, 2^47854217 is an apocalyptic number.

It is an amenable number.

47854217 is a deficient number, since it is larger than the sum of its proper divisors (2518663).

47854217 is a wasteful number, since it uses less digits than its factorization.

47854217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518662.

The product of its digits is 62720, while the sum is 38.

The square root of 47854217 is about 6917.6742478957. The cubic root of 47854217 is about 363.0558214412.

The spelling of 47854217 in words is "forty-seven million, eight hundred fifty-four thousand, two hundred seventeen".