28898519 has 8 divisors (see below), whose sum is σ = 31321920. Its totient is φ = 26503776.

The previous prime is 28898509. The next prime is 28898539. The reversal of 28898519 is 91589882.

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

It is not a de Polignac number, because 28898519 - 2⁴ = 28898503 is a prime.

It is a super-2 number, since 2×28898519² = 1670248800786722, 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 (28898509) 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, 5039 + ... + 9120.

It is an arithmetic number, because the mean of its divisors is an integer number (3915240).

Almost surely, 2^28898519 is an apocalyptic number.

28898519 is a deficient number, since it is larger than the sum of its proper divisors (2423401).

28898519 is a wasteful number, since it uses less digits than its factorization.

28898519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329.

The product of its digits is 414720, while the sum is 50.

The square root of 28898519 is about 5375.7342754269. The cubic root of 28898519 is about 306.8728938677.

The spelling of 28898519 in words is "twenty-eight million, eight hundred ninety-eight thousand, five hundred nineteen".