2825813 has 4 divisors (see below), whose sum is σ = 2974560. Its totient is φ = 2677068.

The previous prime is 2825783. The next prime is 2825819. The reversal of 2825813 is 3185282.

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 2825813 - 2⁶ = 2825749 is a prime.

It is a super-2 number, since 2×2825813² = 15970438221938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74345 + ... + 74382.

It is an arithmetic number, because the mean of its divisors is an integer number (743640).

2^2825813 is an apocalyptic number.

It is an amenable number.

2825813 is a deficient number, since it is larger than the sum of its proper divisors (148747).

2825813 is a wasteful number, since it uses less digits than its factorization.

2825813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148746.

The product of its digits is 3840, while the sum is 29.

The square root of 2825813 is about 1681.0154669128. The cubic root of 2825813 is about 141.3777740621.

The spelling of 2825813 in words is "two million, eight hundred twenty-five thousand, eight hundred thirteen".