28470113 has 32 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 21479040.

The previous prime is 28470049. The next prime is 28470137. The reversal of 28470113 is 31107482.

It is a cyclic number.

It is not a de Polignac number, because 28470113 - 2⁶ = 28470049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28470173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125306 + ... + 125532.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^28470113 is an apocalyptic number.

28470113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28470113 is a deficient number, since it is larger than the sum of its proper divisors (8301727).

28470113 is a wasteful number, since it uses less digits than its factorization.

28470113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 28470113 is about 5335.7392177654. The cubic root of 28470113 is about 305.3489261194.

Adding to 28470113 its reverse (31107482), we get a palindrome (59577595).

The spelling of 28470113 in words is "twenty-eight million, four hundred seventy thousand, one hundred thirteen".