28079910 has 48 divisors (see below), whose sum is σ = 76854960. Its totient is φ = 7093440.

The previous prime is 28079899. The next prime is 28079923. The reversal of 28079910 is 1997082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6501 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (1601145).

Almost surely, 2^28079910 is an apocalyptic number.

28079910 is an abundant number, since it is smaller than the sum of its proper divisors (48775050).

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

28079910 is a wasteful number, since it uses less digits than its factorization.

28079910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16453 (or 16450 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 28079910 is about 5299.0480277121. The cubic root of 28079910 is about 303.9474964151.

The spelling of 28079910 in words is "twenty-eight million, seventy-nine thousand, nine hundred ten".