47258947 has 4 divisors (see below), whose sum is σ = 49746280. Its totient is φ = 44771616.

The previous prime is 47258933. The next prime is 47258969. The reversal of 47258947 is 74985274.

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

It is a cyclic number.

It is not a de Polignac number, because 47258947 - 2¹¹ = 47256899 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47258897 and 47258906.

It is not an unprimeable number, because it can be changed into a prime (47258917) 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, 1243638 + ... + 1243675.

It is an arithmetic number, because the mean of its divisors is an integer number (12436570).

Almost surely, 2^47258947 is an apocalyptic number.

47258947 is a deficient number, since it is larger than the sum of its proper divisors (2487333).

47258947 is a wasteful number, since it uses less digits than its factorization.

47258947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487332.

The product of its digits is 564480, while the sum is 46.

The square root of 47258947 is about 6874.5143101168. The cubic root of 47258947 is about 361.5441567500.

It can be divided in two parts, 47258 and 947, that added together give a triangular number (48205 = T₃₁₀).

The spelling of 47258947 in words is "forty-seven million, two hundred fifty-eight thousand, nine hundred forty-seven".