47708405 has 8 divisors (see below), whose sum is σ = 58188984. Its totient is φ = 37540800.

The previous prime is 47708389. The next prime is 47708407. The reversal of 47708405 is 50480774.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5276209 + 42432196 = 2297^2 + 6514^2 .

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

It is not a de Polignac number, because 47708405 - 2⁴ = 47708389 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 (47708407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77906 + ... + 78515.

It is an arithmetic number, because the mean of its divisors is an integer number (7273623).

Almost surely, 2^47708405 is an apocalyptic number.

It is an amenable number.

47708405 is a deficient number, since it is larger than the sum of its proper divisors (10480579).

47708405 is a wasteful number, since it uses less digits than its factorization.

47708405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156487.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 47708405 is about 6907.1271162474. The cubic root of 47708405 is about 362.6867020805.

The spelling of 47708405 in words is "forty-seven million, seven hundred eight thousand, four hundred five".