87275393 has 2 divisors, whose sum is σ = 87275394. Its totient is φ = 87275392.

The previous prime is 87275387. The next prime is 87275411. The reversal of 87275393 is 39357278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65157184 + 22118209 = 8072^2 + 4703^2 .

It is a cyclic number.

It is not a de Polignac number, because 87275393 - 2²⁴ = 70498177 is a prime.

It is not a weakly prime, because it can be changed into another prime (87275333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43637696 + 43637697.

It is an arithmetic number, because the mean of its divisors is an integer number (43637697).

Almost surely, 2^87275393 is an apocalyptic number.

It is an amenable number.

87275393 is a deficient number, since it is larger than the sum of its proper divisors (1).

87275393 is an equidigital number, since it uses as much as digits as its factorization.

87275393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 87275393 is about 9342.1300033772. The cubic root of 87275393 is about 443.5718097497.

The spelling of 87275393 in words is "eighty-seven million, two hundred seventy-five thousand, three hundred ninety-three".