405473773 has 2 divisors, whose sum is σ = 405473774. Its totient is φ = 405473772.

The previous prime is 405473759. The next prime is 405473779. The reversal of 405473773 is 377374504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351112644 + 54361129 = 18738^2 + 7373^2 .

It is a cyclic number.

It is not a de Polignac number, because 405473773 - 2¹³ = 405465581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405473779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202736886 + 202736887.

It is an arithmetic number, because the mean of its divisors is an integer number (202736887).

Almost surely, 2^405473773 is an apocalyptic number.

It is an amenable number.

405473773 is a deficient number, since it is larger than the sum of its proper divisors (1).

405473773 is an equidigital number, since it uses as much as digits as its factorization.

405473773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 40.

The square root of 405473773 is about 20136.3793418777. The cubic root of 405473773 is about 740.1520097997.

The spelling of 405473773 in words is "four hundred five million, four hundred seventy-three thousand, seven hundred seventy-three".