28932955 has 4 divisors (see below), whose sum is σ = 34719552. Its totient is φ = 23146360.

The previous prime is 28932947. The next prime is 28932961. The reversal of 28932955 is 55923982.

It is a happy number.

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

It is not a de Polignac number, because 28932955 - 2³ = 28932947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893291 + ... + 2893300.

It is an arithmetic number, because the mean of its divisors is an integer number (8679888).

Almost surely, 2^28932955 is an apocalyptic number.

28932955 is a deficient number, since it is larger than the sum of its proper divisors (5786597).

28932955 is an equidigital number, since it uses as much as digits as its factorization.

28932955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786596.

The product of its digits is 194400, while the sum is 43.

The square root of 28932955 is about 5378.9362331227. The cubic root of 28932955 is about 306.9947372545.

The spelling of 28932955 in words is "twenty-eight million, nine hundred thirty-two thousand, nine hundred fifty-five".