2115716 has 6 divisors (see below), whose sum is σ = 3702510. Its totient is φ = 1057856.

The previous prime is 2115713. The next prime is 2115721. The reversal of 2115716 is 6175112.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 1600 = 1454^2 + 40^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2115691 and 2115700.

It is not an unprimeable number, because it can be changed into a prime (2115713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264461 + ... + 264468.

It is an arithmetic number, because the mean of its divisors is an integer number (617085).

2^2115716 is an apocalyptic number.

It is an amenable number.

2115716 is a deficient number, since it is larger than the sum of its proper divisors (1586794).

2115716 is a wasteful number, since it uses less digits than its factorization.

2115716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528933 (or 528931 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 2115716 is about 1454.5501022653. The cubic root of 2115716 is about 128.3765765705.

The spelling of 2115716 in words is "two million, one hundred fifteen thousand, seven hundred sixteen".