1963216 has 10 divisors (see below), whose sum is σ = 3803762. Its totient is φ = 981600.

The previous prime is 1963207. The next prime is 1963219. The reversal of 1963216 is 6123691.

It can be written as a sum of positive squares in only one way, i.e., 1948816 + 14400 = 1396^2 + 120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61335 + ... + 61366.

2^1963216 is an apocalyptic number.

1963216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1963216 is a deficient number, since it is larger than the sum of its proper divisors (1840546).

1963216 is a wasteful number, since it uses less digits than its factorization.

1963216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122709 (or 122703 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 1963216 is about 1401.1481006660. The cubic root of 1963216 is about 125.2149049817.

The spelling of 1963216 in words is "one million, nine hundred sixty-three thousand, two hundred sixteen".