47640183 has 4 divisors (see below), whose sum is σ = 63520248. Its totient is φ = 31760120.

The previous prime is 47640179. The next prime is 47640191. The reversal of 47640183 is 38104674.

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

It is a cyclic number.

It is not a de Polignac number, because 47640183 - 2² = 47640179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47642183) 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, 7940028 + ... + 7940033.

It is an arithmetic number, because the mean of its divisors is an integer number (15880062).

Almost surely, 2^47640183 is an apocalyptic number.

47640183 is a deficient number, since it is larger than the sum of its proper divisors (15880065).

47640183 is a wasteful number, since it uses less digits than its factorization.

47640183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15880064.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 47640183 is about 6902.1868273758. The cubic root of 47640183 is about 362.5137415322.

The spelling of 47640183 in words is "forty-seven million, six hundred forty thousand, one hundred eighty-three".