253847 has 8 divisors (see below), whose sum is σ = 283392. Its totient is φ = 225400.

The previous prime is 253823. The next prime is 253853. The reversal of 253847 is 748352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 253847 - 2¹⁰ = 252823 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 5⁷ + 8⁵ + 3⁶ + 4⁷ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253867) 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, 272 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (35424).

2²⁵³⁸⁴⁷ is an apocalyptic number.

253847 is a deficient number, since it is larger than the sum of its proper divisors (29545).

253847 is a wasteful number, since it uses less digits than its factorization.

253847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 6720, while the sum is 29.

The square root of 253847 is about 503.8323133742. The cubic root of 253847 is about 63.3175368422.

The spelling of 253847 in words is "two hundred fifty-three thousand, eight hundred forty-seven".