28284607 has 8 divisors (see below), whose sum is σ = 30847040. Its totient is φ = 25777440.

The previous prime is 28284601. The next prime is 28284637. The reversal of 28284607 is 70648282.

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

It is not a de Polignac number, because 28284607 - 2⁷ = 28284479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28284601) 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, 12744 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (3855880).

Almost surely, 2^28284607 is an apocalyptic number.

28284607 is a deficient number, since it is larger than the sum of its proper divisors (2562433).

28284607 is a wasteful number, since it uses less digits than its factorization.

28284607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27633.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28284607 is about 5318.3274626521. The cubic root of 28284607 is about 304.6842813791.

It can be divided in two parts, 28 and 284607, that added together give a triangular number (284635 = T₇₅₄).

The spelling of 28284607 in words is "twenty-eight million, two hundred eighty-four thousand, six hundred seven".