87205343 has 2 divisors, whose sum is σ = 87205344. Its totient is φ = 87205342.

The previous prime is 87205309. The next prime is 87205357. The reversal of 87205343 is 34350278.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87205343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87205373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43602671 + 43602672.

It is an arithmetic number, because the mean of its divisors is an integer number (43602672).

Almost surely, 2^87205343 is an apocalyptic number.

87205343 is a deficient number, since it is larger than the sum of its proper divisors (1).

87205343 is an equidigital number, since it uses as much as digits as its factorization.

87205343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 87205343 is about 9338.3801057785. The cubic root of 87205343 is about 443.4531030479.

The spelling of 87205343 in words is "eighty-seven million, two hundred five thousand, three hundred forty-three".