413666557 has 4 divisors (see below), whose sum is σ = 413758240. Its totient is φ = 413574876.

The previous prime is 413666551. The next prime is 413666587. The reversal of 413666557 is 755666314.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413666557 is a prime.

It is a super-2 number, since 2×413666557² = 342240040760468498, 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 (413666551) 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, 38703 + ... + 48220.

It is an arithmetic number, because the mean of its divisors is an integer number (103439560).

Almost surely, 2^413666557 is an apocalyptic number.

It is an amenable number.

413666557 is a deficient number, since it is larger than the sum of its proper divisors (91683).

413666557 is an equidigital number, since it uses as much as digits as its factorization.

413666557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91682.

The product of its digits is 453600, while the sum is 43.

The square root of 413666557 is about 20338.7943841320. The cubic root of 413666557 is about 745.1038439095.

The spelling of 413666557 in words is "four hundred thirteen million, six hundred sixty-six thousand, five hundred fifty-seven".