1929694241 has 2 divisors, whose sum is σ = 1929694242. Its totient is φ = 1929694240.

The previous prime is 1929694213. The next prime is 1929694279. The reversal of 1929694241 is 1424969291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1929054241 + 640000 = 43921^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1929694241 - 2⁶ = 1929694177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1929690241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964847120 + 964847121.

It is an arithmetic number, because the mean of its divisors is an integer number (964847121).

Almost surely, 2^1929694241 is an apocalyptic number.

It is an amenable number.

1929694241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1929694241 is an equidigital number, since it uses as much as digits as its factorization.

1929694241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 1929694241 is about 43928.2852044102. The cubic root of 1929694241 is about 1244.9813152898.

The spelling of 1929694241 in words is "one billion, nine hundred twenty-nine million, six hundred ninety-four thousand, two hundred forty-one".