53947 has 4 divisors (see below), whose sum is σ = 54760. Its totient is φ = 53136.

The previous prime is 53939. The next prime is 53951. The reversal of 53947 is 74935.

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 53947 - 2³ = 53939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53917) 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, 297 + ... + 442.

It is an arithmetic number, because the mean of its divisors is an integer number (13690).

2⁵³⁹⁴⁷ is an apocalyptic number.

53947 is a deficient number, since it is larger than the sum of its proper divisors (813).

53947 is an equidigital number, since it uses as much as digits as its factorization.

53947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its digits is 3780, while the sum is 28.

The square root of 53947 is about 232.2649349342. The cubic root of 53947 is about 37.7852615572.

It can be divided in two parts, 53 and 947, that added together give a cube (1000 = 10³).

The spelling of 53947 in words is "fifty-three thousand, nine hundred forty-seven".