904849769 has 4 divisors (see below), whose sum is σ = 958076244. Its totient is φ = 851623296.

The previous prime is 904849753. The next prime is 904849801. The reversal of 904849769 is 967948409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 784728169 + 120121600 = 28013^2 + 10960^2 .

It is not a de Polignac number, because 904849769 - 2⁴ = 904849753 is a prime.

It is a super-2 number, since 2×904849769² = 1637506208918706722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904849709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26613212 + ... + 26613245.

It is an arithmetic number, because the mean of its divisors is an integer number (239519061).

Almost surely, 2^904849769 is an apocalyptic number.

It is an amenable number.

904849769 is a deficient number, since it is larger than the sum of its proper divisors (53226475).

904849769 is a wasteful number, since it uses less digits than its factorization.

904849769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53226474.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 904849769 is about 30080.7208856437. The cubic root of 904849769 is about 967.2205012715.

The spelling of 904849769 in words is "nine hundred four million, eight hundred forty-nine thousand, seven hundred sixty-nine".