28747065 has 8 divisors (see below), whose sum is σ = 45995328. Its totient is φ = 15331760.

The previous prime is 28747063. The next prime is 28747067. The reversal of 28747065 is 56074782.

It is an interprime number because it is at equal distance from previous prime (28747063) and next prime (28747067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28747065 - 2¹ = 28747063 is a prime.

It is a super-2 number, since 2×28747065² = 1652787492228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28747063) 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, 958221 + ... + 958250.

It is an arithmetic number, because the mean of its divisors is an integer number (5749416).

Almost surely, 2^28747065 is an apocalyptic number.

It is an amenable number.

28747065 is a deficient number, since it is larger than the sum of its proper divisors (17248263).

28747065 is a wasteful number, since it uses less digits than its factorization.

28747065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916479.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 28747065 is about 5361.6289502352. The cubic root of 28747065 is about 306.3358587534.

The spelling of 28747065 in words is "twenty-eight million, seven hundred forty-seven thousand, sixty-five".