904349761 has 4 divisors (see below), whose sum is σ = 1033542592. Its totient is φ = 775156932.

The previous prime is 904349749. The next prime is 904349767. The reversal of 904349761 is 167943409.

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, and also an emirpimes, since its reverse is a distinct semiprime: 167943409 = 3251 ⋅51659.

It is a cyclic number.

It is not a de Polignac number, because 904349761 - 2¹¹ = 904347713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904349767) 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, 64596405 + ... + 64596418.

It is an arithmetic number, because the mean of its divisors is an integer number (258385648).

Almost surely, 2^904349761 is an apocalyptic number.

It is an amenable number.

904349761 is a deficient number, since it is larger than the sum of its proper divisors (129192831).

904349761 is a wasteful number, since it uses less digits than its factorization.

904349761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129192830.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 904349761 is about 30072.4086331641. The cubic root of 904349761 is about 967.0423106986.

The spelling of 904349761 in words is "nine hundred four million, three hundred forty-nine thousand, seven hundred sixty-one".