28708995 has 32 divisors (see below), whose sum is σ = 53176320. Its totient is φ = 12954240.

The previous prime is 28708961. The next prime is 28709011. The reversal of 28708995 is 59980782.

It is a happy number.

It is not a de Polignac number, because 28708995 - 2⁶ = 28708931 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6565 + ... + 10025.

It is an arithmetic number, because the mean of its divisors is an integer number (1661760).

Almost surely, 2^28708995 is an apocalyptic number.

28708995 is a deficient number, since it is larger than the sum of its proper divisors (24467325).

28708995 is a wasteful number, since it uses less digits than its factorization.

28708995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 28708995 is about 5358.0775470312. The cubic root of 28708995 is about 306.2005712257.

The spelling of 28708995 in words is "twenty-eight million, seven hundred eight thousand, nine hundred ninety-five".