905401 has 8 divisors (see below), whose sum is σ = 1041344. Its totient is φ = 771120.

The previous prime is 905381. The next prime is 905413. The reversal of 905401 is 104509.

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

It is a de Polignac number, because none of the positive numbers 2^k-905401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (905461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171 + ... + 1783.

It is an arithmetic number, because the mean of its divisors is an integer number (130168).

2⁹⁰⁵⁴⁰¹ is an apocalyptic number.

It is an amenable number.

905401 is a deficient number, since it is larger than the sum of its proper divisors (135943).

905401 is a wasteful number, since it uses less digits than its factorization.

905401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 905401 is about 951.5256171013. The cubic root of 905401 is about 96.7416870405.

The spelling of 905401 in words is "nine hundred five thousand, four hundred one".