28977295 has 8 divisors (see below), whose sum is σ = 35131824. Its totient is φ = 22942464.

The previous prime is 28977271. The next prime is 28977307. The reversal of 28977295 is 59277982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28977295 - 2¹³ = 28969103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29389 + ... + 30358.

It is an arithmetic number, because the mean of its divisors is an integer number (4391478).

Almost surely, 2^28977295 is an apocalyptic number.

28977295 is a deficient number, since it is larger than the sum of its proper divisors (6154529).

28977295 is an equidigital number, since it uses as much as digits as its factorization.

28977295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59849.

The product of its digits is 635040, while the sum is 49.

The square root of 28977295 is about 5383.0562880208. The cubic root of 28977295 is about 307.1514812279.

The spelling of 28977295 in words is "twenty-eight million, nine hundred seventy-seven thousand, two hundred ninety-five".