28752351 has 4 divisors (see below), whose sum is σ = 38336472. Its totient is φ = 19168232.

The previous prime is 28752349. The next prime is 28752371. The reversal of 28752351 is 15325782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28752351 - 2¹ = 28752349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28752331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4792056 + ... + 4792061.

It is an arithmetic number, because the mean of its divisors is an integer number (9584118).

Almost surely, 2^28752351 is an apocalyptic number.

28752351 is a deficient number, since it is larger than the sum of its proper divisors (9584121).

28752351 is an equidigital number, since it uses as much as digits as its factorization.

28752351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9584120.

The product of its digits is 16800, while the sum is 33.

The square root of 28752351 is about 5362.1218747805. The cubic root of 28752351 is about 306.3546339119.

The spelling of 28752351 in words is "twenty-eight million, seven hundred fifty-two thousand, three hundred fifty-one".