2193650939 has 2 divisors, whose sum is σ = 2193650940. Its totient is φ = 2193650938.

The previous prime is 2193650929. The next prime is 2193650959. The reversal of 2193650939 is 9390563912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2193650939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2193650893 and 2193650902.

It is not a weakly prime, because it can be changed into another prime (2193650929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096825469 + 1096825470.

It is an arithmetic number, because the mean of its divisors is an integer number (1096825470).

Almost surely, 2^2193650939 is an apocalyptic number.

2193650939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193650939 is an equidigital number, since it uses as much as digits as its factorization.

2193650939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 47.

The square root of 2193650939 is about 46836.4274790467. The cubic root of 2193650939 is about 1299.3390997655.

The spelling of 2193650939 in words is "two billion, one hundred ninety-three million, six hundred fifty thousand, nine hundred thirty-nine".