4308749 has 2 divisors, whose sum is σ = 4308750. Its totient is φ = 4308748.

The previous prime is 4308737. The next prime is 4308781. The reversal of 4308749 is 9478034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2951524 + 1357225 = 1718^2 + 1165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4308749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4308949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2154374 + 2154375.

It is an arithmetic number, because the mean of its divisors is an integer number (2154375).

Almost surely, 2^4308749 is an apocalyptic number.

It is an amenable number.

4308749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4308749 is an equidigital number, since it uses as much as digits as its factorization.

4308749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 4308749 is about 2075.7526345882. The cubic root of 4308749 is about 162.7235455895.

The spelling of 4308749 in words is "four million, three hundred eight thousand, seven hundred forty-nine".