904641 has 8 divisors (see below), whose sum is σ = 1214784. Its totient is φ = 598800.

The previous prime is 904637. The next prime is 904643. The reversal of 904641 is 146409.

904641 = T₃₀₈ + T₃₀₉ + ... + T₃₂₅.

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

It is not a de Polignac number, because 904641 - 2² = 904637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (904643) 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, 546 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (151848).

2⁹⁰⁴⁶⁴¹ is an apocalyptic number.

It is an amenable number.

904641 is a deficient number, since it is larger than the sum of its proper divisors (310143).

904641 is a wasteful number, since it uses less digits than its factorization.

904641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 904641 is about 951.1261745951. The cubic root of 904641 is about 96.7146109111.

The spelling of 904641 in words is "nine hundred four thousand, six hundred forty-one".