2089433947 has 2 divisors, whose sum is σ = 2089433948. Its totient is φ = 2089433946.

The previous prime is 2089433939. The next prime is 2089433953. The reversal of 2089433947 is 7493349802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2089433947 - 2³ = 2089433939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2089433947.

It is not a weakly prime, because it can be changed into another prime (2089433987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044716973 + 1044716974.

It is an arithmetic number, because the mean of its divisors is an integer number (1044716974).

Almost surely, 2^2089433947 is an apocalyptic number.

2089433947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089433947 is an equidigital number, since it uses as much as digits as its factorization.

2089433947 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 49.

The square root of 2089433947 is about 45710.3264810043. The cubic root of 2089433947 is about 1278.4278278526.

The spelling of 2089433947 in words is "two billion, eighty-nine million, four hundred thirty-three thousand, nine hundred forty-seven".