2537861 has 4 divisors (see below), whose sum is σ = 2548224. Its totient is φ = 2527500.

The previous prime is 2537851. The next prime is 2537869. The reversal of 2537861 is 1687352.

It is a happy number.

2537861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2537861 - 2¹⁰ = 2536837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2537869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4805 + ... + 5306.

It is an arithmetic number, because the mean of its divisors is an integer number (637056).

2^2537861 is an apocalyptic number.

It is an amenable number.

2537861 is a deficient number, since it is larger than the sum of its proper divisors (10363).

2537861 is a wasteful number, since it uses less digits than its factorization.

2537861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362.

The product of its digits is 10080, while the sum is 32.

The square root of 2537861 is about 1593.0665397277. The cubic root of 2537861 is about 136.4025880779.

The spelling of 2537861 in words is "two million, five hundred thirty-seven thousand, eight hundred sixty-one".