87375857 has 2 divisors, whose sum is σ = 87375858. Its totient is φ = 87375856.

The previous prime is 87375809. The next prime is 87375877. The reversal of 87375857 is 75857378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68574961 + 18800896 = 8281^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 87375857 - 2⁶ = 87375793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87375877) 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, 43687928 + 43687929.

It is an arithmetic number, because the mean of its divisors is an integer number (43687929).

Almost surely, 2^87375857 is an apocalyptic number.

It is an amenable number.

87375857 is a deficient number, since it is larger than the sum of its proper divisors (1).

87375857 is an equidigital number, since it uses as much as digits as its factorization.

87375857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646400, while the sum is 50.

The square root of 87375857 is about 9347.5053891399. The cubic root of 87375857 is about 443.7419451821.

The spelling of 87375857 in words is "eighty-seven million, three hundred seventy-five thousand, eight hundred fifty-seven".