2061986947 has 2 divisors, whose sum is σ = 2061986948. Its totient is φ = 2061986946.

The previous prime is 2061986921. The next prime is 2061986957. The reversal of 2061986947 is 7496891602.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2061986947 - 2⁷ = 2061986819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2061986894 and 2061986903.

It is not a weakly prime, because it can be changed into another prime (2061986957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030993473 + 1030993474.

It is an arithmetic number, because the mean of its divisors is an integer number (1030993474).

Almost surely, 2^2061986947 is an apocalyptic number.

2061986947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061986947 is an equidigital number, since it uses as much as digits as its factorization.

2061986947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 2061986947 is about 45409.1064325208. The cubic root of 2061986947 is about 1272.8052868779.

The spelling of 2061986947 in words is "two billion, sixty-one million, nine hundred eighty-six thousand, nine hundred forty-seven".