87284413 has 2 divisors, whose sum is σ = 87284414. Its totient is φ = 87284412.

The previous prime is 87284411. The next prime is 87284419. The reversal of 87284413 is 31448278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87272964 + 11449 = 9342^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 87284413 - 2¹ = 87284411 is a prime.

Together with 87284411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87284411) 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, 43642206 + 43642207.

It is an arithmetic number, because the mean of its divisors is an integer number (43642207).

Almost surely, 2^87284413 is an apocalyptic number.

It is an amenable number.

87284413 is a deficient number, since it is larger than the sum of its proper divisors (1).

87284413 is an equidigital number, since it uses as much as digits as its factorization.

87284413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 37.

The square root of 87284413 is about 9342.6127501893. The cubic root of 87284413 is about 443.5870904214.

The spelling of 87284413 in words is "eighty-seven million, two hundred eighty-four thousand, four hundred thirteen".