2029739 has 4 divisors (see below), whose sum is σ = 2099760. Its totient is φ = 1959720.

The previous prime is 2029723. The next prime is 2029759. The reversal of 2029739 is 9379202.

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 2029739 - 2⁴ = 2029723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029759) 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, 34967 + ... + 35024.

It is an arithmetic number, because the mean of its divisors is an integer number (524940).

2^2029739 is an apocalyptic number.

2029739 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2029739 is a deficient number, since it is larger than the sum of its proper divisors (70021).

2029739 is an equidigital number, since it uses as much as digits as its factorization.

2029739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70020.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 2029739 is about 1424.6890888892. The cubic root of 2029739 is about 126.6135149419.

The spelling of 2029739 in words is "two million, twenty-nine thousand, seven hundred thirty-nine".