904949 has 4 divisors (see below), whose sum is σ = 915936. Its totient is φ = 893964.

The previous prime is 904933. The next prime is 904987. The reversal of 904949 is 949409.

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 904949 - 2⁴ = 904933 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 (904919) 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, 5369 + ... + 5534.

It is an arithmetic number, because the mean of its divisors is an integer number (228984).

2⁹⁰⁴⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

904949 is a deficient number, since it is larger than the sum of its proper divisors (10987).

904949 is a wasteful number, since it uses less digits than its factorization.

904949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10986.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 904949 is about 951.2880741395. The cubic root of 904949 is about 96.7255856956.

The spelling of 904949 in words is "nine hundred four thousand, nine hundred forty-nine".