168863970 has 64 divisors (see below), whose sum is σ = 445875840. Its totient is φ = 40927040.

The previous prime is 168863969. The next prime is 168863983. The reversal of 168863970 is 79368861.

168863970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37816 + ... + 42044.

It is an arithmetic number, because the mean of its divisors is an integer number (6966810).

Almost surely, 2^168863970 is an apocalyptic number.

168863970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168863970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222937920).

168863970 is an abundant number, since it is smaller than the sum of its proper divisors (277011870).

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

168863970 is a wasteful number, since it uses less digits than its factorization.

168863970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 168863970 is about 12994.7670236907. The cubic root of 168863970 is about 552.7291024500.

The spelling of 168863970 in words is "one hundred sixty-eight million, eight hundred sixty-three thousand, nine hundred seventy".