1712320 has 28 divisors (see below), whose sum is σ = 4078224. Its totient is φ = 684800.

The previous prime is 1712311. The next prime is 1712329. The reversal of 1712320 is 232171.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1712311) and next prime (1712329).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1712294 and 1712303.

It is not an unprimeable number, because it can be changed into a prime (1712329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 2995.

2^1712320 is an apocalyptic number.

1712320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1712320 is an abundant number, since it is smaller than the sum of its proper divisors (2365904).

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

1712320 is an equidigital number, since it uses as much as digits as its factorization.

1712320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368 (or 5358 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1712320 is about 1308.5564565581. The cubic root of 1712320 is about 119.6359336180.

Adding to 1712320 its reverse (232171), we get a palindrome (1944491).

The spelling of 1712320 in words is "one million, seven hundred twelve thousand, three hundred twenty".