170989354 has 4 divisors (see below), whose sum is σ = 256484034. Its totient is φ = 85494676.

The previous prime is 170989333. The next prime is 170989361. The reversal of 170989354 is 453989071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453989071 = 11689 ⋅38839.

It can be written as a sum of positive squares in only one way, i.e., 91298025 + 79691329 = 9555^2 + 8927^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42747337 + ... + 42747340.

Almost surely, 2^170989354 is an apocalyptic number.

170989354 is a deficient number, since it is larger than the sum of its proper divisors (85494680).

170989354 is an equidigital number, since it uses as much as digits as its factorization.

170989354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85494679.

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

The square root of 170989354 is about 13076.2897643024. The cubic root of 170989354 is about 555.0383914140.

The spelling of 170989354 in words is "one hundred seventy million, nine hundred eighty-nine thousand, three hundred fifty-four".