719345749 has 8 divisors (see below), whose sum is σ = 739159128. Its totient is φ = 699552000.

The previous prime is 719345747. The next prime is 719345761. The reversal of 719345749 is 947543917.

It can be written as a sum of positive squares in 4 ways, for example, as 104652900 + 614692849 = 10230^2 + 24793^2 .

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 719345749 - 2¹ = 719345747 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 (719345741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99249 + ... + 106249.

It is an arithmetic number, because the mean of its divisors is an integer number (92394891).

Almost surely, 2^719345749 is an apocalyptic number.

It is an amenable number.

719345749 is a deficient number, since it is larger than the sum of its proper divisors (19813379).

719345749 is a wasteful number, since it uses less digits than its factorization.

719345749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815.

The product of its digits is 952560, while the sum is 49.

The square root of 719345749 is about 26820.6217116606. The cubic root of 719345749 is about 896.0093889355.

The spelling of 719345749 in words is "seven hundred nineteen million, three hundred forty-five thousand, seven hundred forty-nine".