9854651 has 2 divisors, whose sum is σ = 9854652. Its totient is φ = 9854650.

The previous prime is 9854639. The next prime is 9854653. The reversal of 9854651 is 1564589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9854651 - 2¹⁸ = 9592507 is a prime.

It is a super-2 number, since 2×9854651² = 194228292663602, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 9854653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9854653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927325 + 4927326.

It is an arithmetic number, because the mean of its divisors is an integer number (4927326).

Almost surely, 2^9854651 is an apocalyptic number.

9854651 is a deficient number, since it is larger than the sum of its proper divisors (1).

9854651 is an equidigital number, since it uses as much as digits as its factorization.

9854651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 9854651 is about 3139.2118437595. The cubic root of 9854651 is about 214.3945540845.

The spelling of 9854651 in words is "nine million, eight hundred fifty-four thousand, six hundred fifty-one".