9745855 has 12 divisors (see below), whose sum is σ = 13604760. Its totient is φ = 6682704.

The previous prime is 9745849. The next prime is 9745861. The reversal of 9745855 is 5585479.

It is an interprime number because it is at equal distance from previous prime (9745849) and next prime (9745861).

It is not a de Polignac number, because 9745855 - 2³ = 9745847 is a prime.

It is a super-3 number, since 3×9745855³ (a number of 22 digits) contains 333 as substring.

9745855 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19645 + ... + 20134.

It is an arithmetic number, because the mean of its divisors is an integer number (1133730).

Almost surely, 2^9745855 is an apocalyptic number.

9745855 is a deficient number, since it is larger than the sum of its proper divisors (3858905).

9745855 is a wasteful number, since it uses less digits than its factorization.

9745855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39798 (or 39791 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 9745855 is about 3121.8351974440. The cubic root of 9745855 is about 213.6026559985.

The spelling of 9745855 in words is "nine million, seven hundred forty-five thousand, eight hundred fifty-five".