28990676 has 24 divisors (see below), whose sum is σ = 59604384. Its totient is φ = 12163680.

The previous prime is 28990667. The next prime is 28990711. The reversal of 28990676 is 67609982.

It is a self number, because there is not a number n which added to its sum of digits gives 28990676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24770 + ... + 25913.

It is an arithmetic number, because the mean of its divisors is an integer number (2483516).

Almost surely, 2^28990676 is an apocalyptic number.

28990676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28990676 is an abundant number, since it is smaller than the sum of its proper divisors (30613708).

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

28990676 is a wasteful number, since it uses less digits than its factorization.

28990676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50711 (or 50709 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 28990676 is about 5384.2990258714. The cubic root of 28990676 is about 307.1987522781.

It can be divided in two parts, 289906 and 76, that added together give a palindrome (289982).

The spelling of 28990676 in words is "twenty-eight million, nine hundred ninety thousand, six hundred seventy-six".