16953644 has 12 divisors (see below), whose sum is σ = 29707944. Its totient is φ = 8465664.

The previous prime is 16953631. The next prime is 16953647. The reversal of 16953644 is 44635961.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16953598 and 16953607.

It is not an unprimeable number, because it can be changed into a prime (16953647) 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, 1292 + ... + 5964.

It is an arithmetic number, because the mean of its divisors is an integer number (2475662).

Almost surely, 2^16953644 is an apocalyptic number.

It is an amenable number.

16953644 is a deficient number, since it is larger than the sum of its proper divisors (12754300).

16953644 is a wasteful number, since it uses less digits than its factorization.

16953644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584 (or 5582 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 16953644 is about 4117.4802974635. The cubic root of 16953644 is about 256.8942319394.

The spelling of 16953644 in words is "sixteen million, nine hundred fifty-three thousand, six hundred forty-four".