2535646 has 4 divisors (see below), whose sum is σ = 3803472. Its totient is φ = 1267822.

The previous prime is 2535641. The next prime is 2535671. The reversal of 2535646 is 6465352.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2535641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633910 + ... + 633913.

It is an arithmetic number, because the mean of its divisors is an integer number (950868).

2^2535646 is an apocalyptic number.

2535646 is a deficient number, since it is larger than the sum of its proper divisors (1267826).

2535646 is a wasteful number, since it uses less digits than its factorization.

2535646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267825.

The product of its digits is 21600, while the sum is 31.

The square root of 2535646 is about 1592.3711878830. The cubic root of 2535646 is about 136.3628932754.

The spelling of 2535646 in words is "two million, five hundred thirty-five thousand, six hundred forty-six".