47662143 has 4 divisors (see below), whose sum is σ = 63549528. Its totient is φ = 31774760.

The previous prime is 47662079. The next prime is 47662171. The reversal of 47662143 is 34126674.

It is a happy number.

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 47662143 - 2⁶ = 47662079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47662193) 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, 7943688 + ... + 7943693.

It is an arithmetic number, because the mean of its divisors is an integer number (15887382).

Almost surely, 2^47662143 is an apocalyptic number.

47662143 is a deficient number, since it is larger than the sum of its proper divisors (15887385).

47662143 is a wasteful number, since it uses less digits than its factorization.

47662143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15887384.

The product of its digits is 24192, while the sum is 33.

The square root of 47662143 is about 6903.7774442692. Note that the first 3 decimals coincide. The cubic root of 47662143 is about 362.5694338657.

The spelling of 47662143 in words is "forty-seven million, six hundred sixty-two thousand, one hundred forty-three".