10097861 has 4 divisors (see below), whose sum is σ = 10109472. Its totient is φ = 10086252.

The previous prime is 10097839. The next prime is 10097891. The reversal of 10097861 is 16879001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16879001 = 929 ⋅18169.

It is a cyclic number.

It is not a de Polignac number, because 10097861 - 2¹⁰ = 10096837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10097891) 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, 4385 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (2527368).

Almost surely, 2^10097861 is an apocalyptic number.

It is an amenable number.

10097861 is a deficient number, since it is larger than the sum of its proper divisors (11611).

10097861 is an equidigital number, since it uses as much as digits as its factorization.

10097861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610.

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

The square root of 10097861 is about 3177.7131714489. The cubic root of 10097861 is about 216.1439726594.

The spelling of 10097861 in words is "ten million, ninety-seven thousand, eight hundred sixty-one".