401747 has 4 divisors (see below), whose sum is σ = 403656. Its totient is φ = 399840.

The previous prime is 401743. The next prime is 401771. The reversal of 401747 is 747104.

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 401747 - 2² = 401743 is a prime.

It is a super-2 number, since 2×401747² = 322801304018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401743) 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, 593 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (100914).

2⁴⁰¹⁷⁴⁷ is an apocalyptic number.

401747 is a deficient number, since it is larger than the sum of its proper divisors (1909).

401747 is a wasteful number, since it uses less digits than its factorization.

401747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 401747 is about 633.8351520703. The cubic root of 401747 is about 73.7877409053.

The spelling of 401747 in words is "four hundred one thousand, seven hundred forty-seven", and thus it is an iban number.