416421663 has 8 divisors (see below), whose sum is σ = 634547328. Its totient is φ = 237955224.

The previous prime is 416421653. The next prime is 416421673. The reversal of 416421663 is 366124614.

It is an interprime number because it is at equal distance from previous prime (416421653) and next prime (416421673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 416421663 - 2¹⁰ = 416420639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416421653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9914781 + ... + 9914822.

It is an arithmetic number, because the mean of its divisors is an integer number (79318416).

Almost surely, 2^416421663 is an apocalyptic number.

416421663 is a deficient number, since it is larger than the sum of its proper divisors (218125665).

416421663 is a wasteful number, since it uses less digits than its factorization.

416421663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19829613.

The product of its digits is 20736, while the sum is 33.

The square root of 416421663 is about 20406.4123010391. The cubic root of 416421663 is about 746.7543676437.

The spelling of 416421663 in words is "four hundred sixteen million, four hundred twenty-one thousand, six hundred sixty-three".