383953 has 4 divisors (see below), whose sum is σ = 386100. Its totient is φ = 381808.

The previous prime is 383951. The next prime is 383963. The reversal of 383953 is 359383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359383 = 31 ⋅11593.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 33489 = 592^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 383953 - 2¹ = 383951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383951) 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, 778 + ... + 1171.

It is an arithmetic number, because the mean of its divisors is an integer number (96525).

2³⁸³⁹⁵³ is an apocalyptic number.

It is an amenable number.

383953 is a deficient number, since it is larger than the sum of its proper divisors (2147).

383953 is a wasteful number, since it uses less digits than its factorization.

383953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its digits is 9720, while the sum is 31.

The square root of 383953 is about 619.6394112708. The cubic root of 383953 is about 72.6818581524.

The spelling of 383953 in words is "three hundred eighty-three thousand, nine hundred fifty-three".