1715216 has 10 divisors (see below), whose sum is σ = 3323262. Its totient is φ = 857600.

The previous prime is 1715213. The next prime is 1715237. The reversal of 1715216 is 6125171.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 633616 = 1040^2 + 796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1715191 and 1715200.

It is not an unprimeable number, because it can be changed into a prime (1715213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53585 + ... + 53616.

2^1715216 is an apocalyptic number.

1715216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1715216 is a deficient number, since it is larger than the sum of its proper divisors (1608046).

1715216 is a wasteful number, since it uses less digits than its factorization.

1715216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107209 (or 107203 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 1715216 is about 1309.6625519576. The cubic root of 1715216 is about 119.7033412918.

The spelling of 1715216 in words is "one million, seven hundred fifteen thousand, two hundred sixteen".