2973729 has 16 divisors (see below), whose sum is σ = 4374720. Its totient is φ = 1781760.

The previous prime is 2973721. The next prime is 2973767. The reversal of 2973729 is 9273792.

It is not a de Polignac number, because 2973729 - 2³ = 2973721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2973721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2737 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

2^2973729 is an apocalyptic number.

It is an amenable number.

2973729 is a deficient number, since it is larger than the sum of its proper divisors (1400991).

2973729 is a wasteful number, since it uses less digits than its factorization.

2973729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 47628, while the sum is 39.

The square root of 2973729 is about 1724.4503472121. The cubic root of 2973729 is about 143.8027294900.

The spelling of 2973729 in words is "two million, nine hundred seventy-three thousand, seven hundred twenty-nine".