28413203 has 8 divisors (see below), whose sum is σ = 34970208. Its totient is φ = 22480704.

The previous prime is 28413197. The next prime is 28413221. The reversal of 28413203 is 30231482.

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

It is a cyclic number.

It is not a de Polignac number, because 28413203 - 2¹⁶ = 28347667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28413223) 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, 156026 + ... + 156207.

It is an arithmetic number, because the mean of its divisors is an integer number (4371276).

Almost surely, 2^28413203 is an apocalyptic number.

28413203 is a deficient number, since it is larger than the sum of its proper divisors (6557005).

28413203 is a wasteful number, since it uses less digits than its factorization.

28413203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312253.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 28413203 is about 5330.4036432525. The cubic root of 28413203 is about 305.1453325118.

Adding to 28413203 its reverse (30231482), we get a palindrome (58644685).

The spelling of 28413203 in words is "twenty-eight million, four hundred thirteen thousand, two hundred three".