413601781 has 4 divisors (see below), whose sum is σ = 413642592. Its totient is φ = 413560972.

The previous prime is 413601763. The next prime is 413601803. The reversal of 413601781 is 187106314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 413601781 - 2¹³ = 413593589 is a prime.

It is a super-2 number, since 2×413601781² = 342132866492743922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413601701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7710 + ... + 29776.

It is an arithmetic number, because the mean of its divisors is an integer number (103410648).

Almost surely, 2^413601781 is an apocalyptic number.

It is an amenable number.

413601781 is a deficient number, since it is larger than the sum of its proper divisors (40811).

413601781 is a wasteful number, since it uses less digits than its factorization.

413601781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40810.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 413601781 is about 20337.2018970162. The cubic root of 413601781 is about 745.0649499701.

The spelling of 413601781 in words is "four hundred thirteen million, six hundred one thousand, seven hundred eighty-one".