406614647 has 2 divisors, whose sum is σ = 406614648. Its totient is φ = 406614646.

The previous prime is 406614643. The next prime is 406614667. The reversal of 406614647 is 746416604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406614647 - 2² = 406614643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406614647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406614643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203307323 + 203307324.

It is an arithmetic number, because the mean of its divisors is an integer number (203307324).

Almost surely, 2^406614647 is an apocalyptic number.

406614647 is a deficient number, since it is larger than the sum of its proper divisors (1).

406614647 is an equidigital number, since it uses as much as digits as its factorization.

406614647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 406614647 is about 20164.6881205735. The cubic root of 406614647 is about 740.8455437177.

The spelling of 406614647 in words is "four hundred six million, six hundred fourteen thousand, six hundred forty-seven".