47708749 has 8 divisors (see below), whose sum is σ = 55107648. Its totient is φ = 40820160.

The previous prime is 47708747. The next prime is 47708779. The reversal of 47708749 is 94780774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47708749 - 2¹ = 47708747 is a prime.

It is a super-2 number, since 2×47708749² = 4552249462290002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47708699 and 47708708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47708747) 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 7 ways as a sum of consecutive naturals, for example, 127377 + ... + 127750.

It is an arithmetic number, because the mean of its divisors is an integer number (6888456).

Almost surely, 2^47708749 is an apocalyptic number.

It is an amenable number.

47708749 is a deficient number, since it is larger than the sum of its proper divisors (7398899).

47708749 is a wasteful number, since it uses less digits than its factorization.

47708749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255155.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 47708749 is about 6907.1520180173. The cubic root of 47708749 is about 362.6875737922.

The spelling of 47708749 in words is "forty-seven million, seven hundred eight thousand, seven hundred forty-nine".