28370543 has 2 divisors, whose sum is σ = 28370544. Its totient is φ = 28370542.

The previous prime is 28370533. The next prime is 28370557. The reversal of 28370543 is 34507382.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28370543 - 2¹⁰ = 28369519 is a prime.

It is a super-2 number, since 2×28370543² = 1609775420229698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28370533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14185271 + 14185272.

It is an arithmetic number, because the mean of its divisors is an integer number (14185272).

Almost surely, 2^28370543 is an apocalyptic number.

28370543 is a deficient number, since it is larger than the sum of its proper divisors (1).

28370543 is an equidigital number, since it uses as much as digits as its factorization.

28370543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 28370543 is about 5326.4005669871. The cubic root of 28370543 is about 304.9925394574.

The spelling of 28370543 in words is "twenty-eight million, three hundred seventy thousand, five hundred forty-three".