28413527 has 4 divisors (see below), whose sum is σ = 28458360. Its totient is φ = 28368696.

The previous prime is 28413523. The next prime is 28413551. The reversal of 28413527 is 72531482.

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 28413527 - 2² = 28413523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28413493 and 28413502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28413523) 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, 21452 + ... + 22737.

It is an arithmetic number, because the mean of its divisors is an integer number (7114590).

Almost surely, 2^28413527 is an apocalyptic number.

28413527 is a deficient number, since it is larger than the sum of its proper divisors (44833).

28413527 is an equidigital number, since it uses as much as digits as its factorization.

28413527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44832.

The product of its digits is 13440, while the sum is 32.

The square root of 28413527 is about 5330.4340348606. The cubic root of 28413527 is about 305.1464923800.

The spelling of 28413527 in words is "twenty-eight million, four hundred thirteen thousand, five hundred twenty-seven".