28077206 has 4 divisors (see below), whose sum is σ = 42115812. Its totient is φ = 14038602.

The previous prime is 28077197. The next prime is 28077229. The reversal of 28077206 is 60277082.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7019300 + ... + 7019303.

It is an arithmetic number, because the mean of its divisors is an integer number (10528953).

Almost surely, 2^28077206 is an apocalyptic number.

28077206 is a deficient number, since it is larger than the sum of its proper divisors (14038606).

28077206 is a wasteful number, since it uses less digits than its factorization.

28077206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038605.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28077206 is about 5298.7928814023. The cubic root of 28077206 is about 303.9377397313.

The spelling of 28077206 in words is "twenty-eight million, seventy-seven thousand, two hundred six".