416728407 has 4 divisors (see below), whose sum is σ = 555637880. Its totient is φ = 277818936.

The previous prime is 416728379. The next prime is 416728439. The reversal of 416728407 is 704827614.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 416728407 - 2¹² = 416724311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (416728307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69454732 + ... + 69454737.

It is an arithmetic number, because the mean of its divisors is an integer number (138909470).

Almost surely, 2^416728407 is an apocalyptic number.

416728407 is a deficient number, since it is larger than the sum of its proper divisors (138909473).

416728407 is a wasteful number, since it uses less digits than its factorization.

416728407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138909472.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 416728407 is about 20413.9267903067. The cubic root of 416728407 is about 746.9376803939.

The spelling of 416728407 in words is "four hundred sixteen million, seven hundred twenty-eight thousand, four hundred seven".