47678505 has 32 divisors (see below), whose sum is σ = 91776000. Its totient is φ = 20647872.

The previous prime is 47678503. The next prime is 47678537. The reversal of 47678505 is 50587674.

It is not a de Polignac number, because 47678505 - 2¹ = 47678503 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (47678503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9955 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (2868000).

Almost surely, 2^47678505 is an apocalyptic number.

It is an amenable number.

47678505 is a deficient number, since it is larger than the sum of its proper divisors (44097495).

47678505 is a wasteful number, since it uses less digits than its factorization.

47678505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23933.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 47678505 is about 6904.9623460233. The cubic root of 47678505 is about 362.6109180989.

The spelling of 47678505 in words is "forty-seven million, six hundred seventy-eight thousand, five hundred five".