7893740749 has 8 divisors (see below), whose sum is σ = 7978203360. Its totient is φ = 7809402000.

The previous prime is 7893740719. The next prime is 7893740759. The reversal of 7893740749 is 9470473987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7893740749 - 2⁵ = 7893740717 is a prime.

It is a super-2 number, since 2×7893740749² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7893740693 and 7893740702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7893740719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100122 + ... + 160660.

It is an arithmetic number, because the mean of its divisors is an integer number (997275420).

Almost surely, 2^7893740749 is an apocalyptic number.

It is an amenable number.

7893740749 is a deficient number, since it is larger than the sum of its proper divisors (84462611).

7893740749 is a wasteful number, since it uses less digits than its factorization.

7893740749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61931.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The square root of 7893740749 is about 88846.7261580302. The cubic root of 7893740749 is about 1991.1055655720.

The spelling of 7893740749 in words is "seven billion, eight hundred ninety-three million, seven hundred forty thousand, seven hundred forty-nine".