28613471 has 2 divisors, whose sum is σ = 28613472. Its totient is φ = 28613470.

The previous prime is 28613461. The next prime is 28613477. The reversal of 28613471 is 17431682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28613471 - 2¹⁰ = 28612447 is a prime.

It is a super-3 number, since 3×28613471³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28613477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14306735 + 14306736.

It is an arithmetic number, because the mean of its divisors is an integer number (14306736).

Almost surely, 2^28613471 is an apocalyptic number.

28613471 is a deficient number, since it is larger than the sum of its proper divisors (1).

28613471 is an equidigital number, since it uses as much as digits as its factorization.

28613471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 28613471 is about 5349.1561016669. The cubic root of 28613471 is about 305.8605848175.

The spelling of 28613471 in words is "twenty-eight million, six hundred thirteen thousand, four hundred seventy-one".