87575947 has 2 divisors, whose sum is σ = 87575948. Its totient is φ = 87575946.

The previous prime is 87575903. The next prime is 87575951. The reversal of 87575947 is 74957578.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87575947 - 2⁷ = 87575819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87575894 and 87575903.

It is not a weakly prime, because it can be changed into another prime (87573947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43787973 + 43787974.

It is an arithmetic number, because the mean of its divisors is an integer number (43787974).

Almost surely, 2^87575947 is an apocalyptic number.

87575947 is a deficient number, since it is larger than the sum of its proper divisors (1).

87575947 is an equidigital number, since it uses as much as digits as its factorization.

87575947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469600, while the sum is 52.

The square root of 87575947 is about 9358.2021243399. The cubic root of 87575947 is about 444.0804087658.

The spelling of 87575947 in words is "eighty-seven million, five hundred seventy-five thousand, nine hundred forty-seven".