28746617 has 8 divisors (see below), whose sum is σ = 30005640. Its totient is φ = 27514240.

The previous prime is 28746611. The next prime is 28746623. The reversal of 28746617 is 71664782.

It is an interprime number because it is at equal distance from previous prime (28746611) and next prime (28746623).

It can be written as a sum of positive squares in 4 ways, for example, as 9174841 + 19571776 = 3029^2 + 4424^2 .

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 28746617 - 2¹⁰ = 28745593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28746611) 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, 4442 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (3750705).

Almost surely, 2^28746617 is an apocalyptic number.

It is an amenable number.

28746617 is a deficient number, since it is larger than the sum of its proper divisors (1259023).

28746617 is a wasteful number, since it uses less digits than its factorization.

28746617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13323.

The product of its digits is 112896, while the sum is 41.

The square root of 28746617 is about 5361.5871717244. The cubic root of 28746617 is about 306.3342674121.

The spelling of 28746617 in words is "twenty-eight million, seven hundred forty-six thousand, six hundred seventeen".