28276701 has 4 divisors (see below), whose sum is σ = 37702272. Its totient is φ = 18851132.

The previous prime is 28276697. The next prime is 28276723. The reversal of 28276701 is 10767282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28276701 - 2² = 28276697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28276741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4712781 + ... + 4712786.

It is an arithmetic number, because the mean of its divisors is an integer number (9425568).

Almost surely, 2^28276701 is an apocalyptic number.

It is an amenable number.

28276701 is a deficient number, since it is larger than the sum of its proper divisors (9425571).

28276701 is an equidigital number, since it uses as much as digits as its factorization.

28276701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425570.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 28276701 is about 5317.5841319155. The cubic root of 28276701 is about 304.6558906906.

The spelling of 28276701 in words is "twenty-eight million, two hundred seventy-six thousand, seven hundred one".