205379007 has 4 divisors (see below), whose sum is σ = 273838680. Its totient is φ = 136919336.

The previous prime is 205378997. The next prime is 205379011. The reversal of 205379007 is 700973502.

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-205379007 is a prime.

It is a super-3 number, since 3×205379007³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205379017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34229832 + ... + 34229837.

It is an arithmetic number, because the mean of its divisors is an integer number (68459670).

Almost surely, 2^205379007 is an apocalyptic number.

205379007 is a deficient number, since it is larger than the sum of its proper divisors (68459673).

205379007 is an equidigital number, since it uses as much as digits as its factorization.

205379007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68459672.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 205379007 is about 14331.0504499845. The cubic root of 205379007 is about 590.0000067031. Note that the first 5 decimals are identical.

The spelling of 205379007 in words is "two hundred five million, three hundred seventy-nine thousand, seven".