19796648 has 16 divisors (see below), whose sum is σ = 37192500. Its totient is φ = 9878656.

The previous prime is 19796639. The next prime is 19796657. The reversal of 19796648 is 84669791.

It is an interprime number because it is at equal distance from previous prime (19796639) and next prime (19796657).

It can be written as a sum of positive squares in 2 ways, for example, as 15225604 + 4571044 = 3902^2 + 2138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19796596 and 19796605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378 + ... + 6726.

Almost surely, 2^19796648 is an apocalyptic number.

It is an amenable number.

19796648 is a deficient number, since it is larger than the sum of its proper divisors (17395852).

19796648 is a wasteful number, since it uses less digits than its factorization.

19796648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924 (or 4920 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 19796648 is about 4449.3424233250. The cubic root of 19796648 is about 270.5186555445.

The spelling of 19796648 in words is "nineteen million, seven hundred ninety-six thousand, six hundred forty-eight".