719394989 has 8 divisors (see below), whose sum is σ = 753242112. Its totient is φ = 685762000.

The previous prime is 719394961. The next prime is 719395003. The reversal of 719394989 is 989493917.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-719394989 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 (719394889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46637 + ... + 60114.

It is an arithmetic number, because the mean of its divisors is an integer number (94155264).

Almost surely, 2^719394989 is an apocalyptic number.

It is an amenable number.

719394989 is a deficient number, since it is larger than the sum of its proper divisors (33847123).

719394989 is a wasteful number, since it uses less digits than its factorization.

719394989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107067.

The product of its digits is 4408992, while the sum is 59.

The square root of 719394989 is about 26821.5396463365. The cubic root of 719394989 is about 896.0298327419.

The spelling of 719394989 in words is "seven hundred nineteen million, three hundred ninety-four thousand, nine hundred eighty-nine".