4890985 has 16 divisors (see below), whose sum is σ = 6780672. Its totient is φ = 3347200.

The previous prime is 4890983. The next prime is 4891001. The reversal of 4890985 is 5890984.

4890985 = T₅₄ + T₅₅ + ... + T₃₀₈.

It is a happy number.

It is not a de Polignac number, because 4890985 - 2¹ = 4890983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4890983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681 + ... + 3550.

It is an arithmetic number, because the mean of its divisors is an integer number (423792).

Almost surely, 2^4890985 is an apocalyptic number.

It is an amenable number.

4890985 is a deficient number, since it is larger than the sum of its proper divisors (1889687).

4890985 is a wasteful number, since it uses less digits than its factorization.

4890985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 4890985 is about 2211.5571437338. The cubic root of 4890985 is about 169.7456982128.

Subtracting 4890985 from its reverse (5890984), we obtain a palindrome (999999).

The spelling of 4890985 in words is "four million, eight hundred ninety thousand, nine hundred eighty-five".