170979072 has 144 divisors (see below), whose sum is σ = 510771072. Its totient is φ = 50319360.

The previous prime is 170979071. The next prime is 170979101. The reversal of 170979072 is 270979071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170979071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312303 + ... + 312849.

Almost surely, 2^170979072 is an apocalyptic number.

170979072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 170979072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255385536).

170979072 is an abundant number, since it is smaller than the sum of its proper divisors (339792000).

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

170979072 is a wasteful number, since it uses less digits than its factorization.

170979072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 170979072 is about 13075.8966040574. The cubic root of 170979072 is about 555.0272659277.

Subtracting 170979072 from its reverse (270979071), we obtain a palindrome (99999999).

The spelling of 170979072 in words is "one hundred seventy million, nine hundred seventy-nine thousand, seventy-two".