28715202 has 32 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 9540144.

The previous prime is 28715173. The next prime is 28715231. The reversal of 28715202 is 20251782.

It is an interprime number because it is at equal distance from previous prime (28715173) and next prime (28715231).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20323 + ... + 21689.

It is an arithmetic number, because the mean of its divisors is an integer number (2000700).

Almost surely, 2^28715202 is an apocalyptic number.

28715202 is an abundant number, since it is smaller than the sum of its proper divisors (35307198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28715202 is a wasteful number, since it uses less digits than its factorization.

28715202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 28715202 is about 5358.6567346677. The cubic root of 28715202 is about 306.2226368999. Note that the first 3 decimals are identical.

Adding to 28715202 its reverse (20251782), we get a palindrome (48966984).

The spelling of 28715202 in words is "twenty-eight million, seven hundred fifteen thousand, two hundred two".