87205103 has 2 divisors, whose sum is σ = 87205104. Its totient is φ = 87205102.

The previous prime is 87205091. The next prime is 87205133. The reversal of 87205103 is 30150278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87205103 - 2²² = 83010799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87205133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43602551 + 43602552.

It is an arithmetic number, because the mean of its divisors is an integer number (43602552).

Almost surely, 2^87205103 is an apocalyptic number.

87205103 is a deficient number, since it is larger than the sum of its proper divisors (1).

87205103 is an equidigital number, since it uses as much as digits as its factorization.

87205103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 87205103 is about 9338.3672555752. The cubic root of 87205103 is about 443.4526962347.

The spelling of 87205103 in words is "eighty-seven million, two hundred five thousand, one hundred three".