16891796 has 6 divisors (see below), whose sum is σ = 29560650. Its totient is φ = 8445896.

The previous prime is 16891793. The next prime is 16891799. The reversal of 16891796 is 69719861.

It is an interprime number because it is at equal distance from previous prime (16891793) and next prime (16891799).

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 81796 = 4100^2 + 286^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16891796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16891793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111471 + ... + 2111478.

It is an arithmetic number, because the mean of its divisors is an integer number (4926775).

Almost surely, 2^16891796 is an apocalyptic number.

It is an amenable number.

16891796 is a deficient number, since it is larger than the sum of its proper divisors (12668854).

16891796 is a wasteful number, since it uses less digits than its factorization.

16891796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222953 (or 4222951 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 16891796 is about 4109.9630168652. The cubic root of 16891796 is about 256.5814623200.

The spelling of 16891796 in words is "sixteen million, eight hundred ninety-one thousand, seven hundred ninety-six".