406265347 has 2 divisors, whose sum is σ = 406265348. Its totient is φ = 406265346.

The previous prime is 406265339. The next prime is 406265357. The reversal of 406265347 is 743562604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406265347 - 2³ = 406265339 is a prime.

It is not a weakly prime, because it can be changed into another prime (406265357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203132673 + 203132674.

It is an arithmetic number, because the mean of its divisors is an integer number (203132674).

Almost surely, 2^406265347 is an apocalyptic number.

406265347 is a deficient number, since it is larger than the sum of its proper divisors (1).

406265347 is an equidigital number, since it uses as much as digits as its factorization.

406265347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 406265347 is about 20156.0250793652. The cubic root of 406265347 is about 740.6333432259.

The spelling of 406265347 in words is "four hundred six million, two hundred sixty-five thousand, three hundred forty-seven".