2603601 has 72 divisors (see below), whose sum is σ = 5363904. Its totient is φ = 1175040.

The previous prime is 2603581. The next prime is 2603617. The reversal of 2603601 is 1063062.

It is a happy number.

2603601 is a `hidden beast` number, since 2 + 60 + 3 + 601 = 666.

It is not a de Polignac number, because 2603601 - 2⁵ = 2603569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2603621) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 153145 + ... + 153161.

2^2603601 is an apocalyptic number.

2603601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2603601 is an abundant number, since it is smaller than the sum of its proper divisors (2760303).

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

2603601 is a wasteful number, since it uses less digits than its factorization.

2603601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2603601 is about 1613.5677859948. The cubic root of 2603601 is about 137.5703397683.

Adding to 2603601 its reverse (1063062), we get a palindrome (3666663).

The spelling of 2603601 in words is "two million, six hundred three thousand, six hundred one".