4897309 has 4 divisors (see below), whose sum is σ = 5185404. Its totient is φ = 4609216.

The previous prime is 4897297. The next prime is 4897331. The reversal of 4897309 is 9037984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 1493284 = 1845^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 4897309 - 2⁷ = 4897181 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4897379) 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, 144022 + ... + 144055.

It is an arithmetic number, because the mean of its divisors is an integer number (1296351).

Almost surely, 2^4897309 is an apocalyptic number.

It is an amenable number.

4897309 is a deficient number, since it is larger than the sum of its proper divisors (288095).

4897309 is a wasteful number, since it uses less digits than its factorization.

4897309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288094.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4897309 is about 2212.9864437000. The cubic root of 4897309 is about 169.8188265952.

The spelling of 4897309 in words is "four million, eight hundred ninety-seven thousand, three hundred nine".