4308649 has 8 divisors (see below), whose sum is σ = 4646880. Its totient is φ = 3981600.

The previous prime is 4308637. The next prime is 4308653. The reversal of 4308649 is 9468034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4308649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4308749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (580860).

Almost surely, 2^4308649 is an apocalyptic number.

It is an amenable number.

4308649 is a deficient number, since it is larger than the sum of its proper divisors (338231).

4308649 is a wasteful number, since it uses less digits than its factorization.

4308649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4308649 is about 2075.7285467999. The cubic root of 4308649 is about 162.7222867183.

The spelling of 4308649 in words is "four million, three hundred eight thousand, six hundred forty-nine".