28148683 has 4 divisors (see below), whose sum is σ = 28164448. Its totient is φ = 28132920.

The previous prime is 28148677. The next prime is 28148689. The reversal of 28148683 is 38684182.

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

It is an interprime number because it is at equal distance from previous prime (28148677) and next prime (28148689).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28148683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28148689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4803 + ... + 8908.

It is an arithmetic number, because the mean of its divisors is an integer number (7041112).

Almost surely, 2^28148683 is an apocalyptic number.

28148683 is a deficient number, since it is larger than the sum of its proper divisors (15765).

28148683 is a wasteful number, since it uses less digits than its factorization.

28148683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15764.

The product of its digits is 73728, while the sum is 40.

The square root of 28148683 is about 5305.5332436994. The cubic root of 28148683 is about 304.1954357059.

The spelling of 28148683 in words is "twenty-eight million, one hundred forty-eight thousand, six hundred eighty-three".