401927 has 4 divisors (see below), whose sum is σ = 403656. Its totient is φ = 400200.

The previous prime is 401917. The next prime is 401939. The reversal of 401927 is 729104.

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 401927 - 2⁸ = 401671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449 + ... + 1002.

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

2⁴⁰¹⁹²⁷ is an apocalyptic number.

401927 is a deficient number, since it is larger than the sum of its proper divisors (1729).

401927 is a wasteful number, since it uses less digits than its factorization.

401927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 401927 is about 633.9771289250. The cubic root of 401927 is about 73.7987592910.

The spelling of 401927 in words is "four hundred one thousand, nine hundred twenty-seven".