904525409 has 8 divisors (see below), whose sum is σ = 988627968. Its totient is φ = 823855680.

The previous prime is 904525367. The next prime is 904525417.

904525409 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 904525409 - 2¹² = 904521313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904525429) 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, 857657 + ... + 858710.

It is an arithmetic number, because the mean of its divisors is an integer number (123578496).

Almost surely, 2^904525409 is an apocalyptic number.

It is an amenable number.

904525409 is a deficient number, since it is larger than the sum of its proper divisors (84102559).

904525409 is a wasteful number, since it uses less digits than its factorization.

904525409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716415.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 904525409 is about 30075.3289092572. The cubic root of 904525409 is about 967.1049148146.

The spelling of 904525409 in words is "nine hundred four million, five hundred twenty-five thousand, four hundred nine".