28083802 has 4 divisors (see below), whose sum is σ = 42125706. Its totient is φ = 14041900.

The previous prime is 28083793. The next prime is 28083821. The reversal of 28083802 is 20838082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20838082 = 2 ⋅10419041.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 1879641 = 5119^2 + 1371^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7020949 + ... + 7020952.

Almost surely, 2^28083802 is an apocalyptic number.

28083802 is a deficient number, since it is larger than the sum of its proper divisors (14041904).

28083802 is a wasteful number, since it uses less digits than its factorization.

28083802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041903.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28083802 is about 5299.4152507612. The cubic root of 28083802 is about 303.9615385898.

The spelling of 28083802 in words is "twenty-eight million, eighty-three thousand, eight hundred two".