28846387 has 8 divisors (see below), whose sum is σ = 30013200. Its totient is φ = 27691104.

The previous prime is 28846373. The next prime is 28846403. The reversal of 28846387 is 78364882.

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 28846387 - 2¹¹ = 28844339 is a prime.

It is a super-2 number, since 2×28846387² = 1664228085907538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28846327) 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, 2413 + ... + 7969.

It is an arithmetic number, because the mean of its divisors is an integer number (3751650).

Almost surely, 2^28846387 is an apocalyptic number.

28846387 is a deficient number, since it is larger than the sum of its proper divisors (1166813).

28846387 is a wasteful number, since it uses less digits than its factorization.

28846387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its digits is 516096, while the sum is 46.

The square root of 28846387 is about 5370.8832606937. The cubic root of 28846387 is about 306.6882531801.

The spelling of 28846387 in words is "twenty-eight million, eight hundred forty-six thousand, three hundred eighty-seven".