47708247 has 4 divisors (see below), whose sum is σ = 63611000. Its totient is φ = 31805496.

The previous prime is 47708231. The next prime is 47708251. The reversal of 47708247 is 74280774.

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

It is not a de Polignac number, because 47708247 - 2⁴ = 47708231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47708447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7951372 + ... + 7951377.

It is an arithmetic number, because the mean of its divisors is an integer number (15902750).

Almost surely, 2^47708247 is an apocalyptic number.

47708247 is a deficient number, since it is larger than the sum of its proper divisors (15902753).

47708247 is a wasteful number, since it uses less digits than its factorization.

47708247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902752.

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 47708247 is about 6907.1156787765. The cubic root of 47708247 is about 362.6863016998.

The spelling of 47708247 in words is "forty-seven million, seven hundred eight thousand, two hundred forty-seven".