87549023 has 2 divisors, whose sum is σ = 87549024. Its totient is φ = 87549022.

The previous prime is 87549019. The next prime is 87549029. The reversal of 87549023 is 32094578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87549023 - 2² = 87549019 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87549029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43774511 + 43774512.

It is an arithmetic number, because the mean of its divisors is an integer number (43774512).

Almost surely, 2^87549023 is an apocalyptic number.

87549023 is a deficient number, since it is larger than the sum of its proper divisors (1).

87549023 is an equidigital number, since it uses as much as digits as its factorization.

87549023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 87549023 is about 9356.7634895834. The cubic root of 87549023 is about 444.0348953311.

The spelling of 87549023 in words is "eighty-seven million, five hundred forty-nine thousand, twenty-three".