416187989 has 16 divisors (see below), whose sum is σ = 516833280. Its totient is φ = 327052080.

The previous prime is 416187977. The next prime is 416187991. The reversal of 416187989 is 989781614.

It is a cyclic number.

It is not a de Polignac number, because 416187989 - 2¹⁶ = 416122453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 416187989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416187389) 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, 46349 + ... + 54594.

It is an arithmetic number, because the mean of its divisors is an integer number (32302080).

Almost surely, 2^416187989 is an apocalyptic number.

It is an amenable number.

416187989 is a deficient number, since it is larger than the sum of its proper divisors (100645291).

416187989 is a wasteful number, since it uses less digits than its factorization.

416187989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101000.

The product of its digits is 870912, while the sum is 53.

The square root of 416187989 is about 20400.6859933680. The cubic root of 416187989 is about 746.6146617115.

The spelling of 416187989 in words is "four hundred sixteen million, one hundred eighty-seven thousand, nine hundred eighty-nine".