87140983 has 2 divisors, whose sum is σ = 87140984. Its totient is φ = 87140982.

The previous prime is 87140971. The next prime is 87140993. The reversal of 87140983 is 38904178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87140983 - 2²¹ = 85043831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87140993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43570491 + 43570492.

It is an arithmetic number, because the mean of its divisors is an integer number (43570492).

Almost surely, 2^87140983 is an apocalyptic number.

87140983 is a deficient number, since it is larger than the sum of its proper divisors (1).

87140983 is an equidigital number, since it uses as much as digits as its factorization.

87140983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 87140983 is about 9334.9334759279. The cubic root of 87140983 is about 443.3439825709.

The spelling of 87140983 in words is "eighty-seven million, one hundred forty thousand, nine hundred eighty-three".