47206487 has 4 divisors (see below), whose sum is σ = 48482376. Its totient is φ = 45930600.

The previous prime is 47206477. The next prime is 47206493. The reversal of 47206487 is 78460274.

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 47206487 - 2⁸ = 47206231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47206487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47206447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637889 + ... + 637962.

It is an arithmetic number, because the mean of its divisors is an integer number (12120594).

Almost surely, 2^47206487 is an apocalyptic number.

47206487 is a deficient number, since it is larger than the sum of its proper divisors (1275889).

47206487 is a wasteful number, since it uses less digits than its factorization.

47206487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275888.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 47206487 is about 6870.6977083845. The cubic root of 47206487 is about 361.4103293305.

The spelling of 47206487 in words is "forty-seven million, two hundred six thousand, four hundred eighty-seven".