401873 has 4 divisors (see below), whose sum is σ = 407040. Its totient is φ = 396708.

The previous prime is 401867. The next prime is 401887. The reversal of 401873 is 378104.

It is a happy number.

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 not a de Polignac number, because 401873 - 2⁶ = 401809 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (401813) 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, 2465 + ... + 2622.

It is an arithmetic number, because the mean of its divisors is an integer number (101760).

2⁴⁰¹⁸⁷³ is an apocalyptic number.

It is an amenable number.

401873 is a deficient number, since it is larger than the sum of its proper divisors (5167).

401873 is an equidigital number, since it uses as much as digits as its factorization.

401873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 401873 is about 633.9345392073. The cubic root of 401873 is about 73.7954541208.

Adding to 401873 its reverse (378104), we get a palindrome (779977).

The spelling of 401873 in words is "four hundred one thousand, eight hundred seventy-three".