28755007 has 8 divisors (see below), whose sum is σ = 30963600. Its totient is φ = 26603904.

The previous prime is 28754987. The next prime is 28755017. The reversal of 28755007 is 70055782.

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 28755007 - 2²³ = 20366399 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 (28755017) 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, 13332 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (3870450).

Almost surely, 2^28755007 is an apocalyptic number.

28755007 is a deficient number, since it is larger than the sum of its proper divisors (2208593).

28755007 is a wasteful number, since it uses less digits than its factorization.

28755007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28745.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 28755007 is about 5362.3695322124. The cubic root of 28755007 is about 306.3640667969.

The spelling of 28755007 in words is "twenty-eight million, seven hundred fifty-five thousand, seven".