28612851 has 8 divisors (see below), whose sum is σ = 39809280. Its totient is φ = 18245832.

The previous prime is 28612849. The next prime is 28612967. The reversal of 28612851 is 15821682.

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

It is not a de Polignac number, because 28612851 - 2¹ = 28612849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28611851) 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, 207271 + ... + 207408.

It is an arithmetic number, because the mean of its divisors is an integer number (4976160).

Almost surely, 2^28612851 is an apocalyptic number.

28612851 is a deficient number, since it is larger than the sum of its proper divisors (11196429).

28612851 is a wasteful number, since it uses less digits than its factorization.

28612851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414705.

The product of its digits is 7680, while the sum is 33.

The square root of 28612851 is about 5349.0981482863. The cubic root of 28612851 is about 305.8583756607.

The spelling of 28612851 in words is "twenty-eight million, six hundred twelve thousand, eight hundred fifty-one".