28747627 has 4 divisors (see below), whose sum is σ = 30260680. Its totient is φ = 27234576.

The previous prime is 28747577. The next prime is 28747651. The reversal of 28747627 is 72674782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72674782 = 2 ⋅36337391.

It is a cyclic number.

It is not a de Polignac number, because 28747627 - 2¹⁵ = 28714859 is a prime.

It is a super-2 number, since 2×28747627² = 1652852116262258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28747427) 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, 756498 + ... + 756535.

It is an arithmetic number, because the mean of its divisors is an integer number (7565170).

Almost surely, 2^28747627 is an apocalyptic number.

28747627 is a deficient number, since it is larger than the sum of its proper divisors (1513053).

28747627 is a wasteful number, since it uses less digits than its factorization.

28747627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513052.

The product of its digits is 263424, while the sum is 43.

The square root of 28747627 is about 5361.6813594245. The cubic root of 28747627 is about 306.3378550109.

It can be divided in two parts, 2874 and 7627, that added together give a palindrome (10501).

The spelling of 28747627 in words is "twenty-eight million, seven hundred forty-seven thousand, six hundred twenty-seven".