401879 has 8 divisors (see below), whose sum is σ = 425952. Its totient is φ = 378400.

The previous prime is 401867. The next prime is 401887. The reversal of 401879 is 978104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237 + ... + 2409.

It is an arithmetic number, because the mean of its divisors is an integer number (53244).

2⁴⁰¹⁸⁷⁹ is an apocalyptic number.

401879 is a deficient number, since it is larger than the sum of its proper divisors (24073).

401879 is a wasteful number, since it uses less digits than its factorization.

401879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 401879 is about 633.9392715395. The cubic root of 401879 is about 73.7958213765.

The spelling of 401879 in words is "four hundred one thousand, eight hundred seventy-nine".