28013067 has 16 divisors (see below), whose sum is σ = 41781760. Its totient is φ = 18549000.

The previous prime is 28013053. The next prime is 28013071. The reversal of 28013067 is 76031082.

It is not a de Polignac number, because 28013067 - 2⁷ = 28012939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28013067.

It is not an unprimeable number, because it can be changed into a prime (28013567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (2611360).

Almost surely, 2^28013067 is an apocalyptic number.

28013067 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28013067 is a deficient number, since it is larger than the sum of its proper divisors (13768693).

28013067 is a wasteful number, since it uses less digits than its factorization.

28013067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031 (or 7025 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28013067 is about 5292.7371935512. The cubic root of 28013067 is about 303.7061268747.

The spelling of 28013067 in words is "twenty-eight million, thirteen thousand, sixty-seven".