47640283 has 4 divisors (see below), whose sum is σ = 48351400. Its totient is φ = 46929168.

The previous prime is 47640251. The next prime is 47640287. The reversal of 47640283 is 38204674.

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 47640283 - 2⁵ = 47640251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47640287) 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, 355458 + ... + 355591.

It is an arithmetic number, because the mean of its divisors is an integer number (12087850).

Almost surely, 2^47640283 is an apocalyptic number.

47640283 is a deficient number, since it is larger than the sum of its proper divisors (711117).

47640283 is an equidigital number, since it uses as much as digits as its factorization.

47640283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711116.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 47640283 is about 6902.1940714529. The cubic root of 47640283 is about 362.5139951791.

The spelling of 47640283 in words is "forty-seven million, six hundred forty thousand, two hundred eighty-three".