28367902 has 4 divisors (see below), whose sum is σ = 42551856. Its totient is φ = 14183950.

The previous prime is 28367861. The next prime is 28367903. The reversal of 28367902 is 20976382.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28367903) 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 as a sum of consecutive naturals, namely, 7091974 + ... + 7091977.

It is an arithmetic number, because the mean of its divisors is an integer number (10637964).

Almost surely, 2^28367902 is an apocalyptic number.

28367902 is a deficient number, since it is larger than the sum of its proper divisors (14183954).

28367902 is a wasteful number, since it uses less digits than its factorization.

28367902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183953.

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

The square root of 28367902 is about 5326.1526452027. The cubic root of 28367902 is about 304.9830752948.

The spelling of 28367902 in words is "twenty-eight million, three hundred sixty-seven thousand, nine hundred two".