28413871 has 2 divisors, whose sum is σ = 28413872. Its totient is φ = 28413870.

The previous prime is 28413859. The next prime is 28413899. The reversal of 28413871 is 17831482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28413871 - 2¹³ = 28405679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28413071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14206935 + 14206936.

It is an arithmetic number, because the mean of its divisors is an integer number (14206936).

Almost surely, 2^28413871 is an apocalyptic number.

28413871 is a deficient number, since it is larger than the sum of its proper divisors (1).

28413871 is an equidigital number, since it uses as much as digits as its factorization.

28413871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 34.

The square root of 28413871 is about 5330.4663023041. The cubic root of 28413871 is about 305.1477238353.

The spelling of 28413871 in words is "twenty-eight million, four hundred thirteen thousand, eight hundred seventy-one".