2046781 has 4 divisors (see below), whose sum is σ = 2232864. Its totient is φ = 1860700.

The previous prime is 2046773. The next prime is 2046787. The reversal of 2046781 is 1876402.

2046781 is nontrivially palindromic in base 4.

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 2046781 - 2³ = 2046773 is a prime.

It is a super-2 number, since 2×2046781² = 8378624923922, 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 (2046787) 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, 93025 + ... + 93046.

It is an arithmetic number, because the mean of its divisors is an integer number (558216).

2^2046781 is an apocalyptic number.

It is an amenable number.

2046781 is a deficient number, since it is larger than the sum of its proper divisors (186083).

2046781 is a wasteful number, since it uses less digits than its factorization.

2046781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186082.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2046781 is about 1430.6575411327. The cubic root of 2046781 is about 126.9668832990.

The spelling of 2046781 in words is "two million, forty-six thousand, seven hundred eighty-one".