2609434987 has 2 divisors, whose sum is σ = 2609434988. Its totient is φ = 2609434986.

The previous prime is 2609434969. The next prime is 2609434991. The reversal of 2609434987 is 7894349062.

It is a happy number.

2609434987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2609434987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2609434187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304717493 + 1304717494.

It is an arithmetic number, because the mean of its divisors is an integer number (1304717494).

Almost surely, 2^2609434987 is an apocalyptic number.

2609434987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609434987 is an equidigital number, since it uses as much as digits as its factorization.

2609434987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 2609434987 is about 51082.6290141766. The cubic root of 2609434987 is about 1376.7301613321.

The spelling of 2609434987 in words is "two billion, six hundred nine million, four hundred thirty-four thousand, nine hundred eighty-seven".