28077801 has 16 divisors (see below), whose sum is σ = 39570240. Its totient is φ = 17660160.

The previous prime is 28077787. The next prime is 28077811. The reversal of 28077801 is 10877082.

It is not a de Polignac number, because 28077801 - 2¹⁰ = 28076777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28077811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15141 + ... + 16893.

It is an arithmetic number, because the mean of its divisors is an integer number (2473140).

Almost surely, 2^28077801 is an apocalyptic number.

It is an amenable number.

28077801 is a deficient number, since it is larger than the sum of its proper divisors (11492439).

28077801 is a wasteful number, since it uses less digits than its factorization.

28077801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 28077801 is about 5298.8490259678. The cubic root of 28077801 is about 303.9398866885.

The spelling of 28077801 in words is "twenty-eight million, seventy-seven thousand, eight hundred one".