47840855 has 4 divisors (see below), whose sum is σ = 57409032. Its totient is φ = 38272680.

The previous prime is 47840831. The next prime is 47840861. The reversal of 47840855 is 55804874.

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

It is not a de Polignac number, because 47840855 - 2⁸ = 47840599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4784081 + ... + 4784090.

It is an arithmetic number, because the mean of its divisors is an integer number (14352258).

Almost surely, 2^47840855 is an apocalyptic number.

47840855 is a deficient number, since it is larger than the sum of its proper divisors (9568177).

47840855 is an equidigital number, since it uses as much as digits as its factorization.

47840855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568176.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 47840855 is about 6916.7083934484. The cubic root of 47840855 is about 363.0220271121.

The spelling of 47840855 in words is "forty-seven million, eight hundred forty thousand, eight hundred fifty-five".