87403003 has 2 divisors, whose sum is σ = 87403004. Its totient is φ = 87403002.

The previous prime is 87402949. The next prime is 87403007. The reversal of 87403003 is 30030478.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87403003 is a prime.

It is not a weakly prime, because it can be changed into another prime (87403007) 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, 43701501 + 43701502.

It is an arithmetic number, because the mean of its divisors is an integer number (43701502).

Almost surely, 2^87403003 is an apocalyptic number.

87403003 is a deficient number, since it is larger than the sum of its proper divisors (1).

87403003 is an equidigital number, since it uses as much as digits as its factorization.

87403003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 87403003 is about 9348.9573215413. The cubic root of 87403003 is about 443.7878944561.

The spelling of 87403003 in words is "eighty-seven million, four hundred three thousand, three".