87168203 has 2 divisors, whose sum is σ = 87168204. Its totient is φ = 87168202.

The previous prime is 87168157. The next prime is 87168209. The reversal of 87168203 is 30286178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87168203 - 2⁸ = 87167947 is a prime.

It is a super-2 number, since 2×87168203² = 15196591228498418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87168209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43584101 + 43584102.

It is an arithmetic number, because the mean of its divisors is an integer number (43584102).

Almost surely, 2^87168203 is an apocalyptic number.

87168203 is a deficient number, since it is larger than the sum of its proper divisors (1).

87168203 is an equidigital number, since it uses as much as digits as its factorization.

87168203 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 35.

The square root of 87168203 is about 9336.3913264173. The cubic root of 87168203 is about 443.3901398304.

The spelling of 87168203 in words is "eighty-seven million, one hundred sixty-eight thousand, two hundred three".