2047816 has 8 divisors (see below), whose sum is σ = 3839670. Its totient is φ = 1023904.

The previous prime is 2047813. The next prime is 2047819. The reversal of 2047816 is 6187402.

It is an interprime number because it is at equal distance from previous prime (2047813) and next prime (2047819).

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 2916 = 1430^2 + 54^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2047811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127981 + ... + 127996.

2^2047816 is an apocalyptic number.

It is an amenable number.

2047816 is a deficient number, since it is larger than the sum of its proper divisors (1791854).

2047816 is a wasteful number, since it uses less digits than its factorization.

2047816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255983 (or 255979 counting only the distinct ones).

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

The square root of 2047816 is about 1431.0192172015. The cubic root of 2047816 is about 126.9882808952.

The spelling of 2047816 in words is "two million, forty-seven thousand, eight hundred sixteen".