84687041 has 2 divisors, whose sum is σ = 84687042. Its totient is φ = 84687040.

The previous prime is 84687019. The next prime is 84687061. The reversal of 84687041 is 14078648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 8386816 = 8735^2 + 2896^2 .

It is a cyclic number.

It is not a de Polignac number, because 84687041 - 2¹⁴ = 84670657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84686986 and 84687004.

It is not a weakly prime, because it can be changed into another prime (84687011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42343520 + 42343521.

It is an arithmetic number, because the mean of its divisors is an integer number (42343521).

Almost surely, 2^84687041 is an apocalyptic number.

It is an amenable number.

84687041 is a deficient number, since it is larger than the sum of its proper divisors (1).

84687041 is an equidigital number, since it uses as much as digits as its factorization.

84687041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 84687041 is about 9202.5562209638. The cubic root of 84687041 is about 439.1426849942.

The spelling of 84687041 in words is "eighty-four million, six hundred eighty-seven thousand, forty-one".