28998910 has 16 divisors (see below), whose sum is σ = 52361712. Its totient is φ = 11563200.

The previous prime is 28998847. The next prime is 28998911. The reversal of 28998910 is 1989982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28998911) 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, 1071 + ... + 7690.

It is an arithmetic number, because the mean of its divisors is an integer number (3272607).

Almost surely, 2^28998910 is an apocalyptic number.

28998910 is a deficient number, since it is larger than the sum of its proper divisors (23362802).

28998910 is a wasteful number, since it uses less digits than its factorization.

28998910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9099.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 28998910 is about 5385.0636022242. The cubic root of 28998910 is about 307.2278332958.

It can be divided in two parts, 289 and 98910, that added together give a palindrome (99199).

The spelling of 28998910 in words is "twenty-eight million, nine hundred ninety-eight thousand, nine hundred ten".