3890805073 has 2 divisors, whose sum is σ = 3890805074. Its totient is φ = 3890805072.

The previous prime is 3890805049. The next prime is 3890805131. The reversal of 3890805073 is 3705080983.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3798010384 + 92794689 = 61628^2 + 9633^2 .

It is a cyclic number.

It is not a de Polignac number, because 3890805073 - 2²⁵ = 3857250641 is a prime.

It is not a weakly prime, because it can be changed into another prime (3890805673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945402536 + 1945402537.

It is an arithmetic number, because the mean of its divisors is an integer number (1945402537).

Almost surely, 2^3890805073 is an apocalyptic number.

It is an amenable number.

3890805073 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890805073 is an equidigital number, since it uses as much as digits as its factorization.

3890805073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 3890805073 is about 62376.3182065117. The cubic root of 3890805073 is about 1572.8229025595.

The spelling of 3890805073 in words is "three billion, eight hundred ninety million, eight hundred five thousand, seventy-three".