28260799 has 8 divisors (see below), whose sum is σ = 32957600. Its totient is φ = 24223248.

The previous prime is 28260787. The next prime is 28260811. The reversal of 28260799 is 99706282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28260787) and next prime (28260811).

It is not a de Polignac number, because 28260799 - 2²¹ = 26163647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28260599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40854 + ... + 41539.

It is an arithmetic number, because the mean of its divisors is an integer number (4119700).

Almost surely, 2^28260799 is an apocalyptic number.

28260799 is a deficient number, since it is larger than the sum of its proper divisors (4696801).

28260799 is an frugal number, since it uses more digits than its factorization.

28260799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82414 (or 82400 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 28260799 is about 5316.0886937673. The cubic root of 28260799 is about 304.5987700902.

The spelling of 28260799 in words is "twenty-eight million, two hundred sixty thousand, seven hundred ninety-nine".