299705057 has 4 divisors (see below), whose sum is σ = 299818800. Its totient is φ = 299591316.

The previous prime is 299705051. The next prime is 299705059. The reversal of 299705057 is 750507992.

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 299705057 - 2²⁰ = 298656481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 299704999 and 299705017.

It is not an unprimeable number, because it can be changed into a prime (299705051) 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, 52823 + ... + 58220.

It is an arithmetic number, because the mean of its divisors is an integer number (74954700).

Almost surely, 2^299705057 is an apocalyptic number.

It is an amenable number.

299705057 is a deficient number, since it is larger than the sum of its proper divisors (113743).

299705057 is a wasteful number, since it uses less digits than its factorization.

299705057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113742.

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 299705057 is about 17311.9917109500. The cubic root of 299705057 is about 669.2134953006.

The spelling of 299705057 in words is "two hundred ninety-nine million, seven hundred five thousand, fifty-seven".