28906486 has 32 divisors (see below), whose sum is σ = 52485120. Its totient is φ = 11664000.

The previous prime is 28906483. The next prime is 28906523. The reversal of 28906486 is 68460982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28906481) 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, 71886 + ... + 72286.

It is an arithmetic number, because the mean of its divisors is an integer number (1640160).

Almost surely, 2^28906486 is an apocalyptic number.

28906486 is a deficient number, since it is larger than the sum of its proper divisors (23578634).

28906486 is a wasteful number, since it uses less digits than its factorization.

28906486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 28906486 is about 5376.4752394110. The cubic root of 28906486 is about 306.9010917568.

It can be divided in two parts, 28906 and 486, that added together give a palindrome (29392).

The spelling of 28906486 in words is "twenty-eight million, nine hundred six thousand, four hundred eighty-six".