170978532 has 12 divisors (see below), whose sum is σ = 398949936. Its totient is φ = 56992840.

The previous prime is 170978531. The next prime is 170978539. The reversal of 170978532 is 235879071.

170978532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (170978531) 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, 7124094 + ... + 7124117.

It is an arithmetic number, because the mean of its divisors is an integer number (33245828).

Almost surely, 2^170978532 is an apocalyptic number.

170978532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

170978532 is an abundant number, since it is smaller than the sum of its proper divisors (227971404).

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

170978532 is a wasteful number, since it uses less digits than its factorization.

170978532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14248218 (or 14248216 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 170978532 is about 13075.8759553615. The cubic root of 170978532 is about 555.0266816164.

The spelling of 170978532 in words is "one hundred seventy million, nine hundred seventy-eight thousand, five hundred thirty-two".