42528847 has 2 divisors, whose sum is σ = 42528848. Its totient is φ = 42528846.

The previous prime is 42528841. The next prime is 42528907. The reversal of 42528847 is 74882524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42528847 - 2³ = 42528839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42528841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21264423 + 21264424.

It is an arithmetic number, because the mean of its divisors is an integer number (21264424).

Almost surely, 2^42528847 is an apocalyptic number.

42528847 is a deficient number, since it is larger than the sum of its proper divisors (1).

42528847 is an equidigital number, since it uses as much as digits as its factorization.

42528847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 143360, while the sum is 40.

The square root of 42528847 is about 6521.4144938042. The cubic root of 42528847 is about 349.0555407867.

The spelling of 42528847 in words is "forty-two million, five hundred twenty-eight thousand, eight hundred forty-seven".