406704511 has 2 divisors, whose sum is σ = 406704512. Its totient is φ = 406704510.

The previous prime is 406704509. The next prime is 406704547. The reversal of 406704511 is 115407604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406704511 - 2¹ = 406704509 is a prime.

Together with 406704509, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 406704511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406704211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203352255 + 203352256.

It is an arithmetic number, because the mean of its divisors is an integer number (203352256).

Almost surely, 2^406704511 is an apocalyptic number.

406704511 is a deficient number, since it is larger than the sum of its proper divisors (1).

406704511 is an equidigital number, since it uses as much as digits as its factorization.

406704511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 406704511 is about 20166.9162491443. The cubic root of 406704511 is about 740.9001166330.

The spelling of 406704511 in words is "four hundred six million, seven hundred four thousand, five hundred eleven".