28038995 has 8 divisors (see below), whose sum is σ = 33731520. Its totient is φ = 22374720.

The previous prime is 28038979. The next prime is 28039013. The reversal of 28038995 is 59983082.

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

It is not a de Polignac number, because 28038995 - 2⁴ = 28038979 is a prime.

It is a super-2 number, since 2×28038995² = 1572370481220050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 8900.

It is an arithmetic number, because the mean of its divisors is an integer number (4216440).

Almost surely, 2^28038995 is an apocalyptic number.

28038995 is a deficient number, since it is larger than the sum of its proper divisors (5692525).

28038995 is a wasteful number, since it uses less digits than its factorization.

28038995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 28038995 is about 5295.1860212839. The cubic root of 28038995 is about 303.7997982109.

The spelling of 28038995 in words is "twenty-eight million, thirty-eight thousand, nine hundred ninety-five".