205701973 has 4 divisors (see below), whose sum is σ = 206372320. Its totient is φ = 205031628.

The previous prime is 205701941. The next prime is 205702009. The reversal of 205701973 is 379107502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205701973 - 2⁵ = 205701941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205701073) 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, 334713 + ... + 335326.

It is an arithmetic number, because the mean of its divisors is an integer number (51593080).

Almost surely, 2^205701973 is an apocalyptic number.

It is an amenable number.

205701973 is a deficient number, since it is larger than the sum of its proper divisors (670347).

205701973 is an equidigital number, since it uses as much as digits as its factorization.

205701973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670346.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 205701973 is about 14342.3140740956. The cubic root of 205701973 is about 590.3091102638.

The spelling of 205701973 in words is "two hundred five million, seven hundred one thousand, nine hundred seventy-three".