28474013 has 2 divisors, whose sum is σ = 28474014. Its totient is φ = 28474012.

The previous prime is 28474003. The next prime is 28474087. The reversal of 28474013 is 31047482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 33124 = 5333^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 28474013 - 2¹⁰ = 28472989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28474003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14237006 + 14237007.

It is an arithmetic number, because the mean of its divisors is an integer number (14237007).

Almost surely, 2^28474013 is an apocalyptic number.

It is an amenable number.

28474013 is a deficient number, since it is larger than the sum of its proper divisors (1).

28474013 is an equidigital number, since it uses as much as digits as its factorization.

28474013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28474013 is about 5336.1046653903. The cubic root of 28474013 is about 305.3628683008.

The spelling of 28474013 in words is "twenty-eight million, four hundred seventy-four thousand, thirteen".