87803413 has 2 divisors, whose sum is σ = 87803414. Its totient is φ = 87803412.

The previous prime is 87803411. The next prime is 87803431. The reversal of 87803413 is 31430878.

Together with next prime (87803431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84768849 + 3034564 = 9207^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 87803413 - 2¹ = 87803411 is a prime.

Together with 87803411, 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 (87803411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43901706 + 43901707.

It is an arithmetic number, because the mean of its divisors is an integer number (43901707).

Almost surely, 2^87803413 is an apocalyptic number.

It is an amenable number.

87803413 is a deficient number, since it is larger than the sum of its proper divisors (1).

87803413 is an equidigital number, since it uses as much as digits as its factorization.

87803413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 87803413 is about 9370.3475389123. The cubic root of 87803413 is about 444.4645548238.

The spelling of 87803413 in words is "eighty-seven million, eight hundred three thousand, four hundred thirteen".