47245827 has 4 divisors (see below), whose sum is σ = 62994440. Its totient is φ = 31497216.

The previous prime is 47245823. The next prime is 47245867. The reversal of 47245827 is 72854274.

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

It is not a de Polignac number, because 47245827 - 2² = 47245823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47245823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7874302 + ... + 7874307.

It is an arithmetic number, because the mean of its divisors is an integer number (15748610).

Almost surely, 2^47245827 is an apocalyptic number.

47245827 is a deficient number, since it is larger than the sum of its proper divisors (15748613).

47245827 is a wasteful number, since it uses less digits than its factorization.

47245827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15748612.

The product of its digits is 125440, while the sum is 39.

The square root of 47245827 is about 6873.5599946462. The cubic root of 47245827 is about 361.5106964308.

The spelling of 47245827 in words is "forty-seven million, two hundred forty-five thousand, eight hundred twenty-seven".