4961898 has 40 divisors (see below), whose sum is σ = 11260260. Its totient is φ = 1632960.

The previous prime is 4961897. The next prime is 4961903. The reversal of 4961898 is 8981694.

It can be written as a sum of positive squares in 2 ways, for example, as 4782969 + 178929 = 2187^2 + 423^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4961897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17518 + ... + 17798.

Almost surely, 2^4961898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4961898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5630130).

4961898 is an abundant number, since it is smaller than the sum of its proper divisors (6298362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4961898 is a wasteful number, since it uses less digits than its factorization.

4961898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 395 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 4961898 is about 2227.5318179546. The cubic root of 4961898 is about 170.5621299588.

The spelling of 4961898 in words is "four million, nine hundred sixty-one thousand, eight hundred ninety-eight".