28087046 has 8 divisors (see below), whose sum is σ = 45371424. Its totient is φ = 12963240.

The previous prime is 28087021. The next prime is 28087049. The reversal of 28087046 is 64078082.

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

It is a super-2 number, since 2×28087046² = 1577764306012232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28086997 and 28087015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28087049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540110 + ... + 540161.

It is an arithmetic number, because the mean of its divisors is an integer number (5671428).

Almost surely, 2^28087046 is an apocalyptic number.

28087046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28087046 is a deficient number, since it is larger than the sum of its proper divisors (17284378).

28087046 is a wasteful number, since it uses less digits than its factorization.

28087046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080286.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 28087046 is about 5299.7213134277. The cubic root of 28087046 is about 303.9732418161.

The spelling of 28087046 in words is "twenty-eight million, eighty-seven thousand, forty-six".