28463013 has 6 divisors (see below), whose sum is σ = 41113254. Its totient is φ = 18975336.

The previous prime is 28462999. The next prime is 28463041. The reversal of 28463013 is 31036482.

It is a happy number.

28463013 is a `hidden beast` number, since 28 + 4 + 630 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25070049 + 3392964 = 5007^2 + 1842^2 .

It is not a de Polignac number, because 28463013 - 2¹⁰ = 28461989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28463063) 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, 1581270 + ... + 1581287.

It is an arithmetic number, because the mean of its divisors is an integer number (6852209).

Almost surely, 2^28463013 is an apocalyptic number.

It is an amenable number.

28463013 is a deficient number, since it is larger than the sum of its proper divisors (12650241).

28463013 is a wasteful number, since it uses less digits than its factorization.

28463013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162563 (or 3162560 counting only the distinct ones).

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

The square root of 28463013 is about 5335.0738514101. The cubic root of 28463013 is about 305.3235409302.

Adding to 28463013 its reverse (31036482), we get a palindrome (59499495).

The spelling of 28463013 in words is "twenty-eight million, four hundred sixty-three thousand, thirteen".