10781616 has 20 divisors (see below), whose sum is σ = 27852632. Its totient is φ = 3593856.

The previous prime is 10781611. The next prime is 10781623. The reversal of 10781616 is 61618701.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10781611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112261 + ... + 112356.

Almost surely, 2^10781616 is an apocalyptic number.

10781616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10781616 is an abundant number, since it is smaller than the sum of its proper divisors (17071016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10781616 is a wasteful number, since it uses less digits than its factorization.

10781616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224628 (or 224622 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 10781616 is about 3283.5371171954. The cubic root of 10781616 is about 220.9163978807.

The spelling of 10781616 in words is "ten million, seven hundred eighty-one thousand, six hundred sixteen".