416424989 has 2 divisors, whose sum is σ = 416424990. Its totient is φ = 416424988.

The previous prime is 416424947. The next prime is 416425003. The reversal of 416424989 is 989424614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220284964 + 196140025 = 14842^2 + 14005^2 .

It is a cyclic number.

It is not a de Polignac number, because 416424989 - 2⁸ = 416424733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416424389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208212494 + 208212495.

It is an arithmetic number, because the mean of its divisors is an integer number (208212495).

Almost surely, 2^416424989 is an apocalyptic number.

It is an amenable number.

416424989 is a deficient number, since it is larger than the sum of its proper divisors (1).

416424989 is an equidigital number, since it uses as much as digits as its factorization.

416424989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 416424989 is about 20406.4937948683. The cubic root of 416424989 is about 746.7563557715.

The spelling of 416424989 in words is "four hundred sixteen million, four hundred twenty-four thousand, nine hundred eighty-nine".