170840680 has 16 divisors (see below), whose sum is σ = 384391620. Its totient is φ = 68336256.

The previous prime is 170840671. The next prime is 170840689. The reversal of 170840680 is 86048071.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (170840671) and next prime (170840689).

It can be written as a sum of positive squares in 2 ways, for example, as 167806116 + 3034564 = 12954^2 + 1742^2 .

It is not an unprimeable number, because it can be changed into a prime (170840689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135469 + ... + 2135548.

Almost surely, 2^170840680 is an apocalyptic number.

170840680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170840680 is an abundant number, since it is smaller than the sum of its proper divisors (213550940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170840680 is a wasteful number, since it uses less digits than its factorization.

170840680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271028 (or 4271024 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 170840680 is about 13070.6036585921. The cubic root of 170840680 is about 554.8774774853.

The spelling of 170840680 in words is "one hundred seventy million, eight hundred forty thousand, six hundred eighty".