4909745 has 4 divisors (see below), whose sum is σ = 5891700. Its totient is φ = 3927792.

The previous prime is 4909739. The next prime is 4909747. The reversal of 4909745 is 5479094.

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 3751969 + 1157776 = 1937^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 4909745 - 2²² = 715441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4909699 and 4909708.

It is not an unprimeable number, because it can be changed into a prime (4909747) 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, 490970 + ... + 490979.

It is an arithmetic number, because the mean of its divisors is an integer number (1472925).

Almost surely, 2^4909745 is an apocalyptic number.

It is an amenable number.

4909745 is a deficient number, since it is larger than the sum of its proper divisors (981955).

4909745 is an equidigital number, since it uses as much as digits as its factorization.

4909745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981954.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 4909745 is about 2215.7944399244. The cubic root of 4909745 is about 169.9624484532.

The spelling of 4909745 in words is "four million, nine hundred nine thousand, seven hundred forty-five".