1650936971 has 2 divisors, whose sum is σ = 1650936972. Its totient is φ = 1650936970.

The previous prime is 1650936901. The next prime is 1650936977. The reversal of 1650936971 is 1796390561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1650936971 - 2¹⁰ = 1650935947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1650936977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825468485 + 825468486.

It is an arithmetic number, because the mean of its divisors is an integer number (825468486).

Almost surely, 2^1650936971 is an apocalyptic number.

1650936971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650936971 is an equidigital number, since it uses as much as digits as its factorization.

1650936971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 1650936971 is about 40631.7237020533. The cubic root of 1650936971 is about 1181.8893821907.

The spelling of 1650936971 in words is "one billion, six hundred fifty million, nine hundred thirty-six thousand, nine hundred seventy-one".