28612270 has 16 divisors (see below), whose sum is σ = 53278560. Its totient is φ = 11050144.

The previous prime is 28612249. The next prime is 28612273. The reversal of 28612270 is 7221682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28612273) 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, 49042 + ... + 49621.

It is an arithmetic number, because the mean of its divisors is an integer number (3329910).

Almost surely, 2^28612270 is an apocalyptic number.

28612270 is a deficient number, since it is larger than the sum of its proper divisors (24666290).

28612270 is a wasteful number, since it uses less digits than its factorization.

28612270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98699.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 28612270 is about 5349.0438397904. The cubic root of 28612270 is about 305.8563054380.

It can be divided in two parts, 28612 and 270, that added together give a palindrome (28882).

The spelling of 28612270 in words is "twenty-eight million, six hundred twelve thousand, two hundred seventy".