416647989 has 16 divisors (see below), whose sum is σ = 621973440. Its totient is φ = 275642640.

The previous prime is 416647969. The next prime is 416647993. The reversal of 416647989 is 989746614.

416647989 = 1718² + 1719² + ... + 1848².

416647989 is a `hidden beast` number, since 4 + 166 + 479 + 8 + 9 = 666.

It is not a de Polignac number, because 416647989 - 2¹¹ = 416645941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416647919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55362 + ... + 62435.

It is an arithmetic number, because the mean of its divisors is an integer number (38873340).

Almost surely, 2^416647989 is an apocalyptic number.

It is an amenable number.

416647989 is a deficient number, since it is larger than the sum of its proper divisors (205325451).

416647989 is a wasteful number, since it uses less digits than its factorization.

416647989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117937 (or 117931 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 416647989 is about 20411.9570105367. The cubic root of 416647989 is about 746.8896306349.

The spelling of 416647989 in words is "four hundred sixteen million, six hundred forty-seven thousand, nine hundred eighty-nine".