47473487 has 2 divisors, whose sum is σ = 47473488. Its totient is φ = 47473486.

The previous prime is 47473477. The next prime is 47473499. The reversal of 47473487 is 78437474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47473487 - 2⁴ = 47473471 is a prime.

It is a super-3 number, since 3×47473487³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47473477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23736743 + 23736744.

It is an arithmetic number, because the mean of its divisors is an integer number (23736744).

Almost surely, 2^47473487 is an apocalyptic number.

47473487 is a deficient number, since it is larger than the sum of its proper divisors (1).

47473487 is an equidigital number, since it uses as much as digits as its factorization.

47473487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 526848, while the sum is 44.

The square root of 47473487 is about 6890.1006523853. The cubic root of 47473487 is about 362.0904279448.

The spelling of 47473487 in words is "forty-seven million, four hundred seventy-three thousand, four hundred eighty-seven".