28621085 has 8 divisors (see below), whose sum is σ = 35838720. Its totient is φ = 21901264.

The previous prime is 28621079. The next prime is 28621093. The reversal of 28621085 is 58012682.

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 28621085 - 2⁴ = 28621069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124325 + ... + 124554.

It is an arithmetic number, because the mean of its divisors is an integer number (4479840).

Almost surely, 2^28621085 is an apocalyptic number.

It is an amenable number.

28621085 is a deficient number, since it is larger than the sum of its proper divisors (7217635).

28621085 is a wasteful number, since it uses less digits than its factorization.

28621085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248907.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 28621085 is about 5349.8677553749. The cubic root of 28621085 is about 305.8877120863.

The spelling of 28621085 in words is "twenty-eight million, six hundred twenty-one thousand, eighty-five".