987061843 has 2 divisors, whose sum is σ = 987061844. Its totient is φ = 987061842.

The previous prime is 987061807. The next prime is 987061849. The reversal of 987061843 is 348160789.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987061843 - 2⁹ = 987061331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 987061793 and 987061802.

It is not a weakly prime, because it can be changed into another prime (987061849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493530921 + 493530922.

It is an arithmetic number, because the mean of its divisors is an integer number (493530922).

Almost surely, 2^987061843 is an apocalyptic number.

987061843 is a deficient number, since it is larger than the sum of its proper divisors (1).

987061843 is an equidigital number, since it uses as much as digits as its factorization.

987061843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 987061843 is about 31417.5403715822. The cubic root of 987061843 is about 995.6685465996.

The spelling of 987061843 in words is "nine hundred eighty-seven million, sixty-one thousand, eight hundred forty-three".