417661403 has 4 divisors (see below), whose sum is σ = 417751920. Its totient is φ = 417570888.

The previous prime is 417661379. The next prime is 417661417. The reversal of 417661403 is 304166714.

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

It is a cyclic number.

It is not a de Polignac number, because 417661403 - 2¹² = 417657307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 417661403.

It is not an unprimeable number, because it can be changed into a prime (417661483) 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, 37943 + ... + 47696.

It is an arithmetic number, because the mean of its divisors is an integer number (104437980).

Almost surely, 2^417661403 is an apocalyptic number.

417661403 is a deficient number, since it is larger than the sum of its proper divisors (90517).

417661403 is an equidigital number, since it uses as much as digits as its factorization.

417661403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90516.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 417661403 is about 20436.7659623532. The cubic root of 417661403 is about 747.4946942051.

The spelling of 417661403 in words is "four hundred seventeen million, six hundred sixty-one thousand, four hundred three".