87204503 has 2 divisors, whose sum is σ = 87204504. Its totient is φ = 87204502.

The previous prime is 87204487. The next prime is 87204517. The reversal of 87204503 is 30540278.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87204503 - 2⁴ = 87204487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87204553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43602251 + 43602252.

It is an arithmetic number, because the mean of its divisors is an integer number (43602252).

Almost surely, 2^87204503 is an apocalyptic number.

87204503 is a deficient number, since it is larger than the sum of its proper divisors (1).

87204503 is an equidigital number, since it uses as much as digits as its factorization.

87204503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 87204503 is about 9338.3351299897. The cubic root of 87204503 is about 443.4516791986.

The spelling of 87204503 in words is "eighty-seven million, two hundred four thousand, five hundred three".