1072170 has 96 divisors (see below), whose sum is σ = 3291840. Its totient is φ = 246240.

The previous prime is 1072163. The next prime is 1072187. The reversal of 1072170 is 712701.

It is a super-2 number, since 2×1072170² = 2299097017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56421 + ... + 56439.

It is an arithmetic number, because the mean of its divisors is an integer number (34290).

2^1072170 is an apocalyptic number.

1072170 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 1072170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645920).

1072170 is an abundant number, since it is smaller than the sum of its proper divisors (2219670).

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

1072170 is a wasteful number, since it uses less digits than its factorization.

1072170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 1072170 is about 1035.4564211013. The cubic root of 1072170 is about 102.3500086591.

Adding to 1072170 its reverse (712701), we get a palindrome (1784871).

The spelling of 1072170 in words is "one million, seventy-two thousand, one hundred seventy".