9934028749 has 4 divisors (see below), whose sum is σ = 9934731936. Its totient is φ = 9933325564.

The previous prime is 9934028737. The next prime is 9934028759. The reversal of 9934028749 is 9478204399.

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.

It is a cyclic number.

It is not a de Polignac number, because 9934028749 - 2²³ = 9925640141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9934028749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9934028729) 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, 329959 + ... + 358804.

It is an arithmetic number, because the mean of its divisors is an integer number (2483682984).

Almost surely, 2^9934028749 is an apocalyptic number.

It is an amenable number.

9934028749 is a deficient number, since it is larger than the sum of its proper divisors (703187).

9934028749 is a wasteful number, since it uses less digits than its factorization.

9934028749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703186.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 9934028749 is about 99669.5979173188. The cubic root of 9934028749 is about 2149.6865415741.

The spelling of 9934028749 in words is "nine billion, nine hundred thirty-four million, twenty-eight thousand, seven hundred forty-nine".