2949729 has 4 divisors (see below), whose sum is σ = 3932976. Its totient is φ = 1966484.

The previous prime is 2949707. The next prime is 2949733. The reversal of 2949729 is 9279492.

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.

It is a cyclic number.

It is not a de Polignac number, because 2949729 - 2⁹ = 2949217 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2949799) 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, 491619 + ... + 491624.

It is an arithmetic number, because the mean of its divisors is an integer number (983244).

2^2949729 is an apocalyptic number.

It is an amenable number.

2949729 is a deficient number, since it is larger than the sum of its proper divisors (983247).

2949729 is an equidigital number, since it uses as much as digits as its factorization.

2949729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983246.

The product of its digits is 81648, while the sum is 42.

The square root of 2949729 is about 1717.4775107698. The cubic root of 2949729 is about 143.4148223602.

The spelling of 2949729 in words is "two million, nine hundred forty-nine thousand, seven hundred twenty-nine".