47840545 has 8 divisors (see below), whose sum is σ = 57847680. Its totient is φ = 37979760.

The previous prime is 47840521. The next prime is 47840549. The reversal of 47840545 is 54504874.

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

It is not a de Polignac number, because 47840545 - 2⁷ = 47840417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47840549) 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, 35865 + ... + 37174.

It is an arithmetic number, because the mean of its divisors is an integer number (7230960).

Almost surely, 2^47840545 is an apocalyptic number.

It is an amenable number.

47840545 is a deficient number, since it is larger than the sum of its proper divisors (10007135).

47840545 is a wasteful number, since it uses less digits than its factorization.

47840545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73175.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 47840545 is about 6916.6859839088. The cubic root of 47840545 is about 363.0212430050.

The spelling of 47840545 in words is "forty-seven million, eight hundred forty thousand, five hundred forty-five".