10097681 has 4 divisors (see below), whose sum is σ = 11015664. Its totient is φ = 9179700.

The previous prime is 10097671. The next prime is 10097741. The reversal of 10097681 is 18679001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10097681 is a prime.

It is a super-2 number, since 2×10097681² = 203926323155522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10097671) 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, 458975 + ... + 458996.

It is an arithmetic number, because the mean of its divisors is an integer number (2753916).

Almost surely, 2^10097681 is an apocalyptic number.

10097681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10097681 is a deficient number, since it is larger than the sum of its proper divisors (917983).

10097681 is an equidigital number, since it uses as much as digits as its factorization.

10097681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917982.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 10097681 is about 3177.6848490686. The cubic root of 10097681 is about 216.1426883562.

The spelling of 10097681 in words is "ten million, ninety-seven thousand, six hundred eighty-one".