28318802 has 4 divisors (see below), whose sum is σ = 42478206. Its totient is φ = 14159400.

The previous prime is 28318799. The next prime is 28318813. The reversal of 28318802 is 20881382.

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

It can be written as a sum of positive squares in only one way, i.e., 24512401 + 3806401 = 4951^2 + 1951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7079699 + ... + 7079702.

Almost surely, 2^28318802 is an apocalyptic number.

28318802 is a deficient number, since it is larger than the sum of its proper divisors (14159404).

28318802 is a wasteful number, since it uses less digits than its factorization.

28318802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14159403.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 28318802 is about 5321.5413180769. The cubic root of 28318802 is about 304.8070157840.

The spelling of 28318802 in words is "twenty-eight million, three hundred eighteen thousand, eight hundred two".