407706613 has 2 divisors, whose sum is σ = 407706614. Its totient is φ = 407706612.

The previous prime is 407706587. The next prime is 407706641. The reversal of 407706613 is 316607704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401521444 + 6185169 = 20038^2 + 2487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407706613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407706643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203853306 + 203853307.

It is an arithmetic number, because the mean of its divisors is an integer number (203853307).

Almost surely, 2^407706613 is an apocalyptic number.

It is an amenable number.

407706613 is a deficient number, since it is larger than the sum of its proper divisors (1).

407706613 is an equidigital number, since it uses as much as digits as its factorization.

407706613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 407706613 is about 20191.7461602507. The cubic root of 407706613 is about 741.5081326149.

The spelling of 407706613 in words is "four hundred seven million, seven hundred six thousand, six hundred thirteen".