9774023281 has 32 divisors (see below), whose sum is σ = 11044509696. Its totient is φ = 8573040000.

The previous prime is 9774023257. The next prime is 9774023297. The reversal of 9774023281 is 1823204779.

It is a 7-Lehmer number, since φ(9774023281) divides (9774023281-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 9774023281 - 2¹¹ = 9774021233 is a prime.

It is a super-2 number, since 2×9774023281² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (9774023981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20069620 + ... + 20070106.

It is an arithmetic number, because the mean of its divisors is an integer number (345140928).

Almost surely, 2^9774023281 is an apocalyptic number.

It is an amenable number.

9774023281 is a deficient number, since it is larger than the sum of its proper divisors (1270486415).

9774023281 is a wasteful number, since it uses less digits than its factorization.

9774023281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 9774023281 is about 98863.6600627349. The cubic root of 9774023281 is about 2138.0824877466.

The spelling of 9774023281 in words is "nine billion, seven hundred seventy-four million, twenty-three thousand, two hundred eighty-one".