28920695 has 4 divisors (see below), whose sum is σ = 34704840. Its totient is φ = 23136552.

The previous prime is 28920677. The next prime is 28920707. The reversal of 28920695 is 59602982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28920695 - 2⁸ = 28920439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892065 + ... + 2892074.

It is an arithmetic number, because the mean of its divisors is an integer number (8676210).

Almost surely, 2^28920695 is an apocalyptic number.

28920695 is a deficient number, since it is larger than the sum of its proper divisors (5784145).

28920695 is an equidigital number, since it uses as much as digits as its factorization.

28920695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784144.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 28920695 is about 5377.7964818316. The cubic root of 28920695 is about 306.9513693231.

The spelling of 28920695 in words is "twenty-eight million, nine hundred twenty thousand, six hundred ninety-five".