28003465 has 32 divisors (see below), whose sum is σ = 39813120. Its totient is φ = 18513600.

The previous prime is 28003441. The next prime is 28003483. The reversal of 28003465 is 56430082.

It is not a de Polignac number, because 28003465 - 2⁵ = 28003433 is a prime.

28003465 is a modest number, since divided by 3465 gives 2800 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146520 + ... + 146710.

It is an arithmetic number, because the mean of its divisors is an integer number (1244160).

Almost surely, 2^28003465 is an apocalyptic number.

It is an amenable number.

28003465 is a deficient number, since it is larger than the sum of its proper divisors (11809655).

28003465 is a wasteful number, since it uses less digits than its factorization.

28003465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 28003465 is about 5291.8300237253. The cubic root of 28003465 is about 303.6714226004.

The spelling of 28003465 in words is "twenty-eight million, three thousand, four hundred sixty-five".