860744749 has 4 divisors (see below), whose sum is σ = 864824320. Its totient is φ = 856665180.

The previous prime is 860744723. The next prime is 860744761. The reversal of 860744749 is 947447068.

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 860744749 - 2⁹ = 860744237 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 (860744789) 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 3 ways as a sum of consecutive naturals, for example, 2039469 + ... + 2039890.

It is an arithmetic number, because the mean of its divisors is an integer number (216206080).

Almost surely, 2^860744749 is an apocalyptic number.

It is an amenable number.

860744749 is a deficient number, since it is larger than the sum of its proper divisors (4079571).

860744749 is a wasteful number, since it uses less digits than its factorization.

860744749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079570.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 860744749 is about 29338.4517144310. The cubic root of 860744749 is about 951.2429709679.

The spelling of 860744749 in words is "eight hundred sixty million, seven hundred forty-four thousand, seven hundred forty-nine".