28103463 has 16 divisors (see below), whose sum is σ = 41747200. Its totient is φ = 18685080.

The previous prime is 28103423. The next prime is 28103483. The reversal of 28103463 is 36430182.

It is a happy number.

It is not a de Polignac number, because 28103463 - 2⁶ = 28103399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28103423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10668 + ... + 13038.

It is an arithmetic number, because the mean of its divisors is an integer number (2609200).

Almost surely, 2^28103463 is an apocalyptic number.

28103463 is a deficient number, since it is larger than the sum of its proper divisors (13643737).

28103463 is a wasteful number, since it uses less digits than its factorization.

28103463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 28103463 is about 5301.2699421931. The cubic root of 28103463 is about 304.0324548395.

The spelling of 28103463 in words is "twenty-eight million, one hundred three thousand, four hundred sixty-three".