170849953 has 4 divisors (see below), whose sum is σ = 171366448. Its totient is φ = 170333460.

The previous prime is 170849947. The next prime is 170849971. The reversal of 170849953 is 359948071.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-170849953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170849453) 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, 257751 + ... + 258412.

It is an arithmetic number, because the mean of its divisors is an integer number (42841612).

Almost surely, 2^170849953 is an apocalyptic number.

It is an amenable number.

170849953 is a deficient number, since it is larger than the sum of its proper divisors (516495).

170849953 is an equidigital number, since it uses as much as digits as its factorization.

170849953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516494.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 170849953 is about 13070.9583810829. The cubic root of 170849953 is about 554.8875166356.

The spelling of 170849953 in words is "one hundred seventy million, eight hundred forty-nine thousand, nine hundred fifty-three".