2343729 has 4 divisors (see below), whose sum is σ = 3124976. Its totient is φ = 1562484.

The previous prime is 2343667. The next prime is 2343743. The reversal of 2343729 is 9273432.

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 not a de Polignac number, because 2343729 - 2¹⁷ = 2212657 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2343696 and 2343705.

It is not an unprimeable number, because it can be changed into a prime (2343779) 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, 390619 + ... + 390624.

It is an arithmetic number, because the mean of its divisors is an integer number (781244).

2^2343729 is an apocalyptic number.

It is an amenable number.

2343729 is a deficient number, since it is larger than the sum of its proper divisors (781247).

2343729 is an equidigital number, since it uses as much as digits as its factorization.

2343729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781246.

The product of its digits is 9072, while the sum is 30.

The square root of 2343729 is about 1530.9242306528. The cubic root of 2343729 is about 132.8319244208.

The spelling of 2343729 in words is "two million, three hundred forty-three thousand, seven hundred twenty-nine".