47678506 has 8 divisors (see below), whose sum is σ = 75724740. Its totient is φ = 22436928.

The previous prime is 47678503. The next prime is 47678537. The reversal of 47678506 is 60587674.

It can be written as a sum of positive squares in 2 ways, for example, as 43230625 + 4447881 = 6575^2 + 2109^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 701121 + ... + 701188.

Almost surely, 2^47678506 is an apocalyptic number.

47678506 is a deficient number, since it is larger than the sum of its proper divisors (28046234).

47678506 is a wasteful number, since it uses less digits than its factorization.

47678506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402328.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 47678506 is about 6904.9624184350. The cubic root of 47678506 is about 362.6109206340.

It can be divided in two parts, 47678 and 506, that added together give a palindrome (48184).

The spelling of 47678506 in words is "forty-seven million, six hundred seventy-eight thousand, five hundred six".