4200961 has 4 divisors (see below), whose sum is σ = 4205124. Its totient is φ = 4196800.

The previous prime is 4200953. The next prime is 4200991. The reversal of 4200961 is 1690024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1640961 + 2560000 = 1281^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 4200961 - 2³ = 4200953 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4200941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501 + ... + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (1051281).

Almost surely, 2^4200961 is an apocalyptic number.

It is an amenable number.

4200961 is a deficient number, since it is larger than the sum of its proper divisors (4163).

4200961 is a wasteful number, since it uses less digits than its factorization.

4200961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4200961 is about 2049.6245997743. The cubic root of 4200961 is about 161.3551692587.

Adding to 4200961 its reverse (1690024), we get a palindrome (5890985).

The spelling of 4200961 in words is "four million, two hundred thousand, nine hundred sixty-one".