8974997749 has 16 divisors (see below), whose sum is σ = 9528865920. Its totient is φ = 8440371520.

The previous prime is 8974997743. The next prime is 8974997789. The reversal of 8974997749 is 9477994798.

It is a cyclic number.

It is not a de Polignac number, because 8974997749 - 2³ = 8974997741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8974997741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144639 + ... + 197155.

It is an arithmetic number, because the mean of its divisors is an integer number (595554120).

Almost surely, 2^8974997749 is an apocalyptic number.

It is an amenable number.

8974997749 is a deficient number, since it is larger than the sum of its proper divisors (553868171).

8974997749 is a wasteful number, since it uses less digits than its factorization.

8974997749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52700.

The product of its digits is 288054144, while the sum is 73.

The square root of 8974997749 is about 94736.4647271577. The cubic root of 8974997749 is about 2078.1558596790.

The spelling of 8974997749 in words is "eight billion, nine hundred seventy-four million, nine hundred ninety-seven thousand, seven hundred forty-nine".