2904731 has 4 divisors (see below), whose sum is σ = 2998464. Its totient is φ = 2811000.

The previous prime is 2904719. The next prime is 2904749. The reversal of 2904731 is 1374092.

2904731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2904731 - 2⁶ = 2904667 is a prime.

It is a super-2 number, since 2×2904731² = 16874924364722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2904731.

It is not an unprimeable number, because it can be changed into a prime (2904791) 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 3 ways as a sum of consecutive naturals, for example, 46820 + ... + 46881.

It is an arithmetic number, because the mean of its divisors is an integer number (749616).

2^2904731 is an apocalyptic number.

2904731 is a deficient number, since it is larger than the sum of its proper divisors (93733).

2904731 is an equidigital number, since it uses as much as digits as its factorization.

2904731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93732.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2904731 is about 1704.3271399588. The cubic root of 2904731 is about 142.6818198256.

The spelling of 2904731 in words is "two million, nine hundred four thousand, seven hundred thirty-one".