170954897 has 4 divisors (see below), whose sum is σ = 171019236. Its totient is φ = 170890560.

The previous prime is 170954891. The next prime is 170954921. The reversal of 170954897 is 798459071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798459071 = 521 ⋅1532551.

It can be written as a sum of positive squares in 2 ways, for example, as 88943761 + 82011136 = 9431^2 + 9056^2 .

It is a cyclic number.

It is not a de Polignac number, because 170954897 - 2⁴ = 170954881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170954891) 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, 28004 + ... + 33557.

It is an arithmetic number, because the mean of its divisors is an integer number (42754809).

Almost surely, 2^170954897 is an apocalyptic number.

It is an amenable number.

170954897 is a deficient number, since it is larger than the sum of its proper divisors (64339).

170954897 is an equidigital number, since it uses as much as digits as its factorization.

170954897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64338.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 170954897 is about 13074.9721605822. The cubic root of 170954897 is about 555.0011059686.

The spelling of 170954897 in words is "one hundred seventy million, nine hundred fifty-four thousand, eight hundred ninety-seven".