4990745 has 16 divisors (see below), whose sum is σ = 6279120. Its totient is φ = 3803904.

The previous prime is 4990723. The next prime is 4990753. The reversal of 4990745 is 5470994.

It can be written as a sum of positive squares in 8 ways, for example, as 906304 + 4084441 = 952^2 + 2021^2 .

It is a cyclic number.

It is not a de Polignac number, because 4990745 - 2¹² = 4986649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4990699 and 4990708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9551 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (392445).

Almost surely, 2^4990745 is an apocalyptic number.

It is an amenable number.

4990745 is a deficient number, since it is larger than the sum of its proper divisors (1288375).

4990745 is a wasteful number, since it uses less digits than its factorization.

4990745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604.

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

The square root of 4990745 is about 2233.9975380470. The cubic root of 4990745 is about 170.8920239878.

Subtracting 4990745 from its reverse (5470994), we obtain a square (480249 = 693²).

The spelling of 4990745 in words is "four million, nine hundred ninety thousand, seven hundred forty-five".