1928961473 has 2 divisors, whose sum is σ = 1928961474. Its totient is φ = 1928961472.

The previous prime is 1928961449. The next prime is 1928961479. The reversal of 1928961473 is 3741698291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1108024369 + 820937104 = 33287^2 + 28652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1928961473 - 2²⁶ = 1861852609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1928961479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964480736 + 964480737.

It is an arithmetic number, because the mean of its divisors is an integer number (964480737).

Almost surely, 2^1928961473 is an apocalyptic number.

It is an amenable number.

1928961473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928961473 is an equidigital number, since it uses as much as digits as its factorization.

1928961473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 1928961473 is about 43919.9439093449. The cubic root of 1928961473 is about 1244.8237086341.

The spelling of 1928961473 in words is "one billion, nine hundred twenty-eight million, nine hundred sixty-one thousand, four hundred seventy-three".