28463415 has 8 divisors (see below), whose sum is σ = 45541488. Its totient is φ = 15180480.

The previous prime is 28463399. The next prime is 28463417. The reversal of 28463415 is 51436482.

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

It is not a de Polignac number, because 28463415 - 2⁴ = 28463399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28463417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948766 + ... + 948795.

It is an arithmetic number, because the mean of its divisors is an integer number (5692686).

Almost surely, 2^28463415 is an apocalyptic number.

28463415 is a deficient number, since it is larger than the sum of its proper divisors (17078073).

28463415 is a wasteful number, since it uses less digits than its factorization.

28463415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897569.

The product of its digits is 23040, while the sum is 33.

The square root of 28463415 is about 5335.1115264819. Note that the first 3 decimals coincide. The cubic root of 28463415 is about 305.3249783452.

Adding to 28463415 its reverse (51436482), we get a palindrome (79899897).

The spelling of 28463415 in words is "twenty-eight million, four hundred sixty-three thousand, four hundred fifteen".