28484415 has 12 divisors (see below), whose sum is σ = 49373064. Its totient is φ = 15191664.

The previous prime is 28484411. The next prime is 28484429. The reversal of 28484415 is 51448482.

It is not a de Polignac number, because 28484415 - 2² = 28484411 is a prime.

It is a super-3 number, since 3×28484415³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 28484415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316449 + ... + 316538.

It is an arithmetic number, because the mean of its divisors is an integer number (4114422).

Almost surely, 2^28484415 is an apocalyptic number.

28484415 is a deficient number, since it is larger than the sum of its proper divisors (20888649).

28484415 is a wasteful number, since it uses less digits than its factorization.

28484415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632998 (or 632995 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 28484415 is about 5337.0792574216. The cubic root of 28484415 is about 305.4000483761.

The spelling of 28484415 in words is "twenty-eight million, four hundred eighty-four thousand, four hundred fifteen".