28196343 has 30 divisors (see below), whose sum is σ = 48354504. Its totient is φ = 16039944.

The previous prime is 28196327. The next prime is 28196359. The reversal of 28196343 is 34369182.

28196343 is a `hidden beast` number, since 2 + 8 + 19 + 634 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (28196327) and next prime (28196359).

It is not a de Polignac number, because 28196343 - 2⁴ = 28196327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28196298 and 28196307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28196303) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 126330 + ... + 126552.

Almost surely, 2^28196343 is an apocalyptic number.

28196343 is a deficient number, since it is larger than the sum of its proper divisors (20158161).

28196343 is an frugal number, since it uses more digits than its factorization.

28196343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 233 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 28196343 is about 5310.0228813066. The cubic root of 28196343 is about 304.3670219425.

The spelling of 28196343 in words is "twenty-eight million, one hundred ninety-six thousand, three hundred forty-three".