53823971 has 4 divisors (see below), whose sum is σ = 55680000. Its totient is φ = 51967944.

The previous prime is 53823961. The next prime is 53824007. The reversal of 53823971 is 17932835.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53823971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53823901) 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, 927971 + ... + 928028.

It is an arithmetic number, because the mean of its divisors is an integer number (13920000).

Almost surely, 2^53823971 is an apocalyptic number.

53823971 is a deficient number, since it is larger than the sum of its proper divisors (1856029).

53823971 is a wasteful number, since it uses less digits than its factorization.

53823971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856028.

The product of its digits is 45360, while the sum is 38.

The square root of 53823971 is about 7336.4821951668. The cubic root of 53823971 is about 377.5651592858.

The spelling of 53823971 in words is "fifty-three million, eight hundred twenty-three thousand, nine hundred seventy-one".