87701143 has 2 divisors, whose sum is σ = 87701144. Its totient is φ = 87701142.

The previous prime is 87701111. The next prime is 87701161. The reversal of 87701143 is 34110778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87701143 - 2⁵ = 87701111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87701183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43850571 + 43850572.

It is an arithmetic number, because the mean of its divisors is an integer number (43850572).

Almost surely, 2^87701143 is an apocalyptic number.

87701143 is a deficient number, since it is larger than the sum of its proper divisors (1).

87701143 is an equidigital number, since it uses as much as digits as its factorization.

87701143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 87701143 is about 9364.8888407711. Note that the first 4 decimals coincide. The cubic root of 87701143 is about 444.2919227733.

The spelling of 87701143 in words is "eighty-seven million, seven hundred one thousand, one hundred forty-three".