28903682 has 4 divisors (see below), whose sum is σ = 43355526. Its totient is φ = 14451840.

The previous prime is 28903681. The next prime is 28903711. The reversal of 28903682 is 28630982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28630982 = 2 ⋅14315491.

It can be written as a sum of positive squares in only one way, i.e., 26946481 + 1957201 = 5191^2 + 1399^2 .

It is not an unprimeable number, because it can be changed into a prime (28903681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7225919 + ... + 7225922.

Almost surely, 2^28903682 is an apocalyptic number.

28903682 is a deficient number, since it is larger than the sum of its proper divisors (14451844).

28903682 is a wasteful number, since it uses less digits than its factorization.

28903682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14451843.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28903682 is about 5376.2144674483. The cubic root of 28903682 is about 306.8911680499.

The spelling of 28903682 in words is "twenty-eight million, nine hundred three thousand, six hundred eighty-two".