28735527 has 8 divisors (see below), whose sum is σ = 38340864. Its totient is φ = 19143608.

The previous prime is 28735493. The next prime is 28735529. The reversal of 28735527 is 72553782.

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 28735527 - 2⁶ = 28735463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28735529) 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, 3868 + ... + 8510.

It is an arithmetic number, because the mean of its divisors is an integer number (4792608).

Almost surely, 2^28735527 is an apocalyptic number.

28735527 is a deficient number, since it is larger than the sum of its proper divisors (9605337).

28735527 is a wasteful number, since it uses less digits than its factorization.

28735527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709.

The product of its digits is 117600, while the sum is 39.

The square root of 28735527 is about 5360.5528632782. The cubic root of 28735527 is about 306.2948693386.

The spelling of 28735527 in words is "twenty-eight million, seven hundred thirty-five thousand, five hundred twenty-seven".