28414503 has 16 divisors (see below), whose sum is σ = 45334240. Its totient is φ = 17485632.

The previous prime is 28414493. The next prime is 28414511. The reversal of 28414503 is 30541482.

It is not a de Polignac number, because 28414503 - 2⁴ = 28414487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40126 + ... + 40827.

It is an arithmetic number, because the mean of its divisors is an integer number (2833390).

Almost surely, 2^28414503 is an apocalyptic number.

28414503 is a deficient number, since it is larger than the sum of its proper divisors (16919737).

28414503 is a wasteful number, since it uses less digits than its factorization.

28414503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80975 (or 80969 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28414503 is about 5330.5255838426. The cubic root of 28414503 is about 305.1499862506.

Adding to 28414503 its reverse (30541482), we get a palindrome (58955985).

The spelling of 28414503 in words is "twenty-eight million, four hundred fourteen thousand, five hundred three".