416731393 has 4 divisors (see below), whose sum is σ = 448787668. Its totient is φ = 384675120.

The previous prime is 416731391. The next prime is 416731397. The reversal of 416731393 is 393137614.

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

It can be written as a sum of positive squares in 2 ways, for example, as 246898369 + 169833024 = 15713^2 + 13032^2 .

It is a cyclic number.

It is not a de Polignac number, because 416731393 - 2¹ = 416731391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416731391) 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, 16028118 + ... + 16028143.

It is an arithmetic number, because the mean of its divisors is an integer number (112196917).

Almost surely, 2^416731393 is an apocalyptic number.

It is an amenable number.

416731393 is a deficient number, since it is larger than the sum of its proper divisors (32056275).

416731393 is a wasteful number, since it uses less digits than its factorization.

416731393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32056274.

The product of its digits is 40824, while the sum is 37.

The square root of 416731393 is about 20413.9999265210. Note that the first 4 decimals coincide. The cubic root of 416731393 is about 746.9394644100.

Subtracting from 416731393 its product of digits (40824), we obtain a square (416690569 = 20413²).

The spelling of 416731393 in words is "four hundred sixteen million, seven hundred thirty-one thousand, three hundred ninety-three".