87675893 has 2 divisors, whose sum is σ = 87675894. Its totient is φ = 87675892.

The previous prime is 87675883. The next prime is 87675923. The reversal of 87675893 is 39857678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78446449 + 9229444 = 8857^2 + 3038^2 .

It is a cyclic number.

It is not a de Polignac number, because 87675893 - 2⁴ = 87675877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87675853) 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, 43837946 + 43837947.

It is an arithmetic number, because the mean of its divisors is an integer number (43837947).

Almost surely, 2^87675893 is an apocalyptic number.

It is an amenable number.

87675893 is a deficient number, since it is larger than the sum of its proper divisors (1).

87675893 is an equidigital number, since it uses as much as digits as its factorization.

87675893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 87675893 is about 9363.5406230763. The cubic root of 87675893 is about 444.2492800458.

The spelling of 87675893 in words is "eighty-seven million, six hundred seventy-five thousand, eight hundred ninety-three".