87045641 has 2 divisors, whose sum is σ = 87045642. Its totient is φ = 87045640.

The previous prime is 87045589. The next prime is 87045671. The reversal of 87045641 is 14654078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 11703241 = 8680^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 87045641 - 2¹⁸ = 86783497 is a prime.

It is not a weakly prime, because it can be changed into another prime (87045671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43522820 + 43522821.

It is an arithmetic number, because the mean of its divisors is an integer number (43522821).

Almost surely, 2^87045641 is an apocalyptic number.

It is an amenable number.

87045641 is a deficient number, since it is larger than the sum of its proper divisors (1).

87045641 is an equidigital number, since it uses as much as digits as its factorization.

87045641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 87045641 is about 9329.8253467040. The cubic root of 87045641 is about 443.1822342343.

The spelling of 87045641 in words is "eighty-seven million, forty-five thousand, six hundred forty-one".