10720906 has 12 divisors (see below), whose sum is σ = 18707058. Its totient is φ = 4594632.

The previous prime is 10720891. The next prime is 10720907. The reversal of 10720906 is 60902701.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 4264225 = 2541^2 + 2065^2 .

It is a super-2 number, since 2×10720906² = 229875650921672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10720907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54601 + ... + 54796.

Almost surely, 2^10720906 is an apocalyptic number.

10720906 is a deficient number, since it is larger than the sum of its proper divisors (7986152).

10720906 is a wasteful number, since it uses less digits than its factorization.

10720906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109413 (or 109406 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 10720906 is about 3274.2794627215. The cubic root of 10720906 is about 220.5009658142.

The spelling of 10720906 in words is "ten million, seven hundred twenty thousand, nine hundred six".