4348309 has 6 divisors (see below), whose sum is σ = 5058294. Its totient is φ = 3727080.

The previous prime is 4348307. The next prime is 4348313. The reversal of 4348309 is 9038434.

4348309 = T₁₆₆ + T₁₆₇ + ... + T₃₁₂.

It can be written as a sum of positive squares in only one way, i.e., 3186225 + 1162084 = 1785^2 + 1078^2 .

It is not a de Polignac number, because 4348309 - 2¹ = 4348307 is a prime.

It is a Duffinian number.

4348309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4348301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44322 + ... + 44419.

It is an arithmetic number, because the mean of its divisors is an integer number (843049).

Almost surely, 2^4348309 is an apocalyptic number.

4348309 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4348309 is a deficient number, since it is larger than the sum of its proper divisors (709985).

4348309 is an equidigital number, since it uses as much as digits as its factorization.

4348309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88755 (or 88748 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 4348309 is about 2085.2599358353. The cubic root of 4348309 is about 163.2200348057.

The spelling of 4348309 in words is "four million, three hundred forty-eight thousand, three hundred nine".