611216 has 10 divisors (see below), whose sum is σ = 1184262. Its totient is φ = 305600.

The previous prime is 611213. The next prime is 611257. The reversal of 611216 is 612116.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 115600 = 704^2 + 340^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 611194 and 611203.

It is not an unprimeable number, because it can be changed into a prime (611213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19085 + ... + 19116.

2⁶¹¹²¹⁶ is an apocalyptic number.

It is an amenable number.

611216 is a deficient number, since it is larger than the sum of its proper divisors (573046).

611216 is a wasteful number, since it uses less digits than its factorization.

611216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38209 (or 38203 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 611216 is about 781.8030442509. The cubic root of 611216 is about 84.8655776119.

Subtracting 611216 from its reverse (612116), we obtain a square (900 = 30²).

The spelling of 611216 in words is "six hundred eleven thousand, two hundred sixteen".