416831489 has 2 divisors, whose sum is σ = 416831490. Its totient is φ = 416831488.

The previous prime is 416831477. The next prime is 416831491. The reversal of 416831489 is 984138614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262699264 + 154132225 = 16208^2 + 12415^2 .

It is a cyclic number.

It is not a de Polignac number, because 416831489 - 2⁴ = 416831473 is a prime.

Together with 416831491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (416831419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208415744 + 208415745.

It is an arithmetic number, because the mean of its divisors is an integer number (208415745).

Almost surely, 2^416831489 is an apocalyptic number.

It is an amenable number.

416831489 is a deficient number, since it is larger than the sum of its proper divisors (1).

416831489 is an equidigital number, since it uses as much as digits as its factorization.

416831489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 416831489 is about 20416.4514301580. The cubic root of 416831489 is about 746.9992628547. Note that the first 3 decimals are identical.

The spelling of 416831489 in words is "four hundred sixteen million, eight hundred thirty-one thousand, four hundred eighty-nine".