47729806 has 4 divisors (see below), whose sum is σ = 71594712. Its totient is φ = 23864902.

The previous prime is 47729791. The next prime is 47729819. The reversal of 47729806 is 60892774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60892774 = 2 ⋅30446387.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11932450 + ... + 11932453.

It is an arithmetic number, because the mean of its divisors is an integer number (17898678).

Almost surely, 2^47729806 is an apocalyptic number.

47729806 is a deficient number, since it is larger than the sum of its proper divisors (23864906).

47729806 is a wasteful number, since it uses less digits than its factorization.

47729806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23864905.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 47729806 is about 6908.6761394641. The cubic root of 47729806 is about 362.7409252151.

The spelling of 47729806 in words is "forty-seven million, seven hundred twenty-nine thousand, eight hundred six".