10720816 has 10 divisors (see below), whose sum is σ = 20771612. Its totient is φ = 5360400.

The previous prime is 10720799. The next prime is 10720837. The reversal of 10720816 is 61802701.

It is a super-2 number, since 2×10720816² = 229871791411712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335010 + ... + 335041.

Almost surely, 2^10720816 is an apocalyptic number.

10720816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10720816 is a deficient number, since it is larger than the sum of its proper divisors (10050796).

10720816 is an equidigital number, since it uses as much as digits as its factorization.

10720816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670059 (or 670053 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 10720816 is about 3274.2657192110. The cubic root of 10720816 is about 220.5003487910.

The spelling of 10720816 in words is "ten million, seven hundred twenty thousand, eight hundred sixteen".