8406473 has 2 divisors, whose sum is σ = 8406474. Its totient is φ = 8406472.

The previous prime is 8406439. The next prime is 8406479. The reversal of 8406473 is 3746048.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4826809 + 3579664 = 2197^2 + 1892^2 .

It is a cyclic number.

It is not a de Polignac number, because 8406473 - 2¹⁴ = 8390089 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 (8406479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203236 + 4203237.

It is an arithmetic number, because the mean of its divisors is an integer number (4203237).

Almost surely, 2^8406473 is an apocalyptic number.

It is an amenable number.

8406473 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406473 is an equidigital number, since it uses as much as digits as its factorization.

8406473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 8406473 is about 2899.3918327815. The cubic root of 8406473 is about 203.3314733026.

The spelling of 8406473 in words is "eight million, four hundred six thousand, four hundred seventy-three".