28301463 has 6 divisors (see below), whose sum is σ = 40879904. Its totient is φ = 18867636.

The previous prime is 28301461. The next prime is 28301479. The reversal of 28301463 is 36410382.

It is a happy number.

It is not a de Polignac number, because 28301463 - 2¹ = 28301461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28301461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1572295 + ... + 1572312.

Almost surely, 2^28301463 is an apocalyptic number.

28301463 is a deficient number, since it is larger than the sum of its proper divisors (12578441).

28301463 is a wasteful number, since it uses less digits than its factorization.

28301463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144613 (or 3144610 counting only the distinct ones).

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

The square root of 28301463 is about 5319.9119353613. The cubic root of 28301463 is about 304.7447941329.

The spelling of 28301463 in words is "twenty-eight million, three hundred one thousand, four hundred sixty-three".