28923067 has 4 divisors (see below), whose sum is σ = 29209536. Its totient is φ = 28636600.

The previous prime is 28923061. The next prime is 28923071. The reversal of 28923067 is 76032982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28923067 - 2¹⁹ = 28398779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28923061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143083 + ... + 143284.

It is an arithmetic number, because the mean of its divisors is an integer number (7302384).

Almost surely, 2^28923067 is an apocalyptic number.

28923067 is a deficient number, since it is larger than the sum of its proper divisors (286469).

28923067 is a wasteful number, since it uses less digits than its factorization.

28923067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286468.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 28923067 is about 5378.0170137328. The cubic root of 28923067 is about 306.9597608774.

The spelling of 28923067 in words is "twenty-eight million, nine hundred twenty-three thousand, sixty-seven".