5120866 has 4 divisors (see below), whose sum is σ = 7681302. Its totient is φ = 2560432.

The previous prime is 5120839. The next prime is 5120879. The reversal of 5120866 is 6680215.

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

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 519841 = 2145^2 + 721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280215 + ... + 1280218.

Almost surely, 2^5120866 is an apocalyptic number.

5120866 is a deficient number, since it is larger than the sum of its proper divisors (2560436).

5120866 is a wasteful number, since it uses less digits than its factorization.

5120866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560435.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 5120866 is about 2262.9330524786. The cubic root of 5120866 is about 172.3644920529.

The spelling of 5120866 in words is "five million, one hundred twenty thousand, eight hundred sixty-six".