2729494723 has 8 divisors (see below), whose sum is σ = 2873666000. Its totient is φ = 2585374848.

The previous prime is 2729494717. The next prime is 2729494751. The reversal of 2729494723 is 3274949272.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2729494723 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2729194723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147703 + ... + 165151.

It is an arithmetic number, because the mean of its divisors is an integer number (359208250).

Almost surely, 2^2729494723 is an apocalyptic number.

2729494723 is a deficient number, since it is larger than the sum of its proper divisors (144171277).

2729494723 is a wasteful number, since it uses less digits than its factorization.

2729494723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25701.

The product of its digits is 1524096, while the sum is 49.

The square root of 2729494723 is about 52244.5664447510. The cubic root of 2729494723 is about 1397.5287565487.

The spelling of 2729494723 in words is "two billion, seven hundred twenty-nine million, four hundred ninety-four thousand, seven hundred twenty-three".