4990851 has 12 divisors (see below), whose sum is σ = 7345728. Its totient is φ = 3264144.

The previous prime is 4990849. The next prime is 4990891. The reversal of 4990851 is 1580994.

It is not a de Polignac number, because 4990851 - 2¹ = 4990849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4990831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4755 + ... + 5708.

It is an arithmetic number, because the mean of its divisors is an integer number (612144).

Almost surely, 2^4990851 is an apocalyptic number.

4990851 is a deficient number, since it is larger than the sum of its proper divisors (2354877).

4990851 is a wasteful number, since it uses less digits than its factorization.

4990851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4990851 is about 2234.0212622086. The cubic root of 4990851 is about 170.8932338557.

The spelling of 4990851 in words is "four million, nine hundred ninety thousand, eight hundred fifty-one".