28196519 has 8 divisors (see below), whose sum is σ = 31072272. Its totient is φ = 25421760.

The previous prime is 28196471. The next prime is 28196521. The reversal of 28196519 is 91569182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-28196519 is a prime.

It is a super-2 number, since 2×28196519² = 1590087367434722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28196549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24662 + ... + 25779.

It is an arithmetic number, because the mean of its divisors is an integer number (3884034).

Almost surely, 2^28196519 is an apocalyptic number.

28196519 is a deficient number, since it is larger than the sum of its proper divisors (2875753).

28196519 is a wasteful number, since it uses less digits than its factorization.

28196519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50497.

The product of its digits is 38880, while the sum is 41.

The square root of 28196519 is about 5310.0394537141. The cubic root of 28196519 is about 304.3676552218.

The spelling of 28196519 in words is "twenty-eight million, one hundred ninety-six thousand, five hundred nineteen".